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.
As I said. No questions. No words. Just cap off the rip.