Sneaky Hot Tub 

A sexual maneuver where a man is boning a woman doggy style, pulls out, and then cums in her butthole, then the girl relaxes creating an air pocket, causing the cum to bubble in her butthole, which resembles a hot tub.

Man this bitch never saw it coming, she thought I was gonna superman that ho, but instead I gave her the old sneaky hot tub!

Sneaky Hot Tub by Barnyard Blizzle December 16, 2008