A word used to describe a females vagina after sex. Normally a steaming beaver occurs after a man has blown into a chick on a cold night. The excess seaman escapes the womans vagina and steams as the night air hits it thus the Steaming part of the beaver. The beaver is used to describe the vagina, as unshaved ones normally have a pubic hair consistancy that is like beaver fur.
We were having a root on the car in the snow last night i shot into her, pulled out she spewed it out and looked like a steaming beaver.