1 definition by derp_derp

Having illicit sexual relations with someone who is involved in a relationship. Can be used in non-adulterous situations as well.
q: "How come you didn't meet us at the bar last night?"
a: "I was rippin' off a piece of Elaine's fine ass"

or

"Rip me off a piece of that bread"

etc
by derp_derp March 4, 2011
Get the Rippin' off a piece mug.