When the collar of any piece of clothing is pulled down or out, often to indicate that a character is feeling [[hot]] and is getting fresh air into their clothes or as a sign of [[nervous]]ness.

Not to be confused with [[shirt pull]] or any other form of [[clothes pull]], which is used for when a character intentionally pulls down on the collar of a shirt/dress/etc. to reveal the cleavage, breasts or pectorals, although sometimes it may come as a result of a collar tug, in which case it should be tagged as both, and even as [[accidental exposure]] if it applies.

Also, not to be confused with [[shirt tug]], which is used for when a character pulls down on the bottom of the shirt.

Also also, not to be confused with [[collar grab]].