I really hate to be vulgar, but this is completely for enlightening and education reasons. For Jake's sake.
dogs in a bathtub - trying to put one's testicles inside a vagina and keep them there. It's as hard to do as keeping dogs in a bathtub.
dirty sanchez - having sex with a girl in the doggy position, then sticking your finger in her rectum and giving her a shitstache. Hence, giving her the appearance of a mexican.
danza slap - when a female is done servicing you orally, you remove your penis from her mouth and slap her in the face with it while yelling "Who's the Boss?"
Smurfing - smacking someone with the head of your penis (also known as the mushroom stamp_
Angry Dragon - finishing inside a girls mouth and then punching her in the back of the head so that your fluids will come out through her nose, making her look like an angry dragon.