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1 definition by leetabix

 
1.
v. chinned, chin·ning
v. tr.
To hurl excessive quantities of blank-firing grenades into a room before entering.
Named after a CQB (Close Quarter Battle) instructor (Mr. Chin) who, when playing airsoft, excessively uses blank-firing grenades to clear each and every room he encounters to avoid the direct engagement of a target.
by leetabix June 27, 2006