Dunk it and junk it
casual sex you intend to have with another person with no intention of contiuing a relationship. Most likely a one nite stand. Most likely said to a friend about a hot girl.
Man, do you see that ass? I'd dunk it and junk it!
Dunk the junk
The practice of taking an ice bath or any cold water dip that covers the genitals, usually after a long run.
"That was a great 10 mile run this morning! I'm gonna go dunk the junk."
"Man, you must have balls of steel"
"Man, you must have balls of steel"