tap out
v. phr.β Β«Once, in a match with Kazushi Sakuraba of Japan, Mr. Gracie refused to βtap out,β or submit, despite being in an iron hold. Mr. Gracie let his own arm snap.Β» ββA Kinder, Gentler (but Not by Much) Brand of Fighting” by Anthony Ramirez New York Times Oct. 21, 2007. (source: Double-Tongued Dictionary)