What is Backside Mulligan?
1.
When, during coitus, the male accidently penetrates anally but would like to return to standard intercourse as if nothing happened.
-"Owe!"
-"Sorry, about that. Can I get a backside mulligan?"
-"Get a new condom or lubricant."
-"Hmmmm."
See 
Random Words:
1. 
n : manual stimulation of the genital organs while playing on your personal computer.
Chris was logging off before he went home for the.. 
1. 
Another colorful way to describe the male member; in some instances,  quite eloquently.
I introduced her to my sin master last night
S..