I’ll try to help make this tag dictionary a thing. For some tags a detailed description may not be appropriate as the short description is sufficient.
Tag: bipedal
Short description: A pony standing on two legs.
Detailed description: A pony standing on their hind legs as if they were a two-legged creature. Does not apply to anthro or humanized art.
Example:
>>481395
Tag: anthro
Short description: A character with semi-human but not fully human anatomy.
Detailed description: Anthros are bipedal versions of four-legged creatures or characters and may have all hooves or hooves and hands or hands and feet, depending on the style of the individual artist. Anthros have tails and muzzles.
Example:
>>400345
Tag: humanized
Short description: A non-human character drawn as a human.
Detailed description: A non-human character drawn as a human. May include a tail, wings, pony ears, or a horn. For humanized art with tails, wings, pony ears, or horns include also the tags “tailed humanization”, “winged humanization”, “eared humanization”, or “horned humanization”, respectively.
Example:
>>7830
Tag: tailed humanization
Short description: Humanized art drawn with a tail.
Detailed description: Humanized art drawn with a tail. If the humanized art also includes wings, a horn, or pony ears, include also the tags “winged humanization”, “horned humanization”, or “eared humanization”, respectively.
Example:
>>465150
Tag: winged humanization
Short description: Humanized art drawn with wings.
Detailed description: Humanized art drawn with wings. If the humanized art also includes a tail, a horn, or pony ears, include also the tags “tailed humanization”, “horned humanization”, or “eared humanization”, respectively.
Example:
>>443822
Tag: horned humanization
Short description: Humanized art drawn with a horn.
Detailed description: Humanized art drawn with a horn. If the humanized art also includes a tail, wings, or pony ears, include also the tags “tailed humanization”, “winged humanization”, or “eared humanization”, respectively.
Example:
>>339603
Tag: eared humanization
Short description: Humanized art drawn with pony ears.
Detailed description: Humanized art drawn with pony ears. If the humanized art also includes a tail, wings, or a horn, include also the tags “tailed humanization”, “winged humanization”, or “horned humanization”, respectively.
Example:
>>479668
Tag: human ponidox
Short description: A pony and their humanized form in the same picture.
Detailed description: A pony and their humanized form in the same picture.
Example:
>>325776 (merged)
Tag: human on pony action (NSFW)
Short description: Sexual acts between a human and a pony.
Detailed description: Sexual acts between a human and a pony.
Example:
>>412829
Tag: anthro on pony action (NSFW)
Short description: Sexual acts between an anthro character and a pony.
Detailed description: Sexual acts between an anthro character and a pony.
Example:
>>435492
Tag: canon x oc (may be NSFW)
Short description: An original character shipped with a canon character.
Detailed description: An original character shown or implied to be in a relationship with or engaging in sexual acts with a canon character.
Example:
>>400717
Tag: solo female (NSFW)
Short description: A single female presented in a provocative or sexual manner.
Detailed description: A single female presented in a provocative or sexual manner.
Example:
>>370557
Tag: solo male (NSFW)
Short description: A single male presented in a provocative or sexual manner.
Detailed description: A single male presented in a provocative or sexual manner.
Example:
>>247064
Tag: wingboner (may be NSFW)
Short description: Erect wings.
Detailed description: Involuntary erection of a character’s wings as a response to sexual stimuli or excitement. Analogous to penile erection. The onomatopoeia of a wingboner is “pomf.”
Example:
>>437611
Tag: wardrobe malfunction (may be NSFW)
Short description: A character’s clothes failing to cover them.
Detailed description: When a character’s clothes slip, rip, or otherwise cease to cover them effectively, often for the purpose of revealing their nudity.
Example:
>>472908
Tag: love heart (may be NSWF)
Short description: A heart drawn in a picture to show love or desire.
Detailed description: A heart drawn in a picture to show love or desire.
Example:
>>343249