drop a bollock

vulgar slang To mess something up; to make a particularly egregious error. Primarily heard in UK. That new intern is totally useless, he's always dropping a bollock on important projects. That player really dropped a bollock during the match yesterday.

Common Names:

Name	Pronounced	Usage
Sissie	SIS-ee	English
Hermenegildo	-	Spanish, Portuguese
Pate	-	Medieval English
Letty	LET-ee	English
MagdalÉNa	-	Czech, Slovak, Hungarian
Molle	-	Medieval English