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
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 04, 2011