couilles (zn):
ballen(en) slang for testicles.
(en) slang for masculinity, inclusive of strength, courage, and force of will., kloten(en) slang for testicles.
(en) slang for masculinity, inclusive of strength, courage, and force of will., kloten aan z’n lijf(en) in plural — slang — courage.
Via: Dbnary en WikiWoordenboeken
Via: Memodata.com