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1.
v. (slang) - to receive oral sex immediately before any conversation or dialogue may be spoken between partners

Layman's terms - Getting head from the start, no words, no questions asked. Just mouth to rod.
Jay: Aye kinfolk real tee, last night...man I got that fire ass head.. as soon as Jen walked in thru the do' she capped me off the rip.

R.J. :......MOUF!

As I said. No questions. No words. Just cap off the rip.
by GettinMoufed February 16, 2010