Definitions by UH0311

Rooster tail 

While having sex in the doggy-style position, the man shoves his thumb unto his partners butthole, while the thumb is inserted, the man extends all other fingers. Thus, resembling a rooster tail.

Jonny gave rachel a rooster tail last night before bed, hope he doesn't still suck his thumb.

Rooster tail by UH0311 November 14, 2014