Just a few hatched up by a bunch of school caretakers:-

ARSE - Attention Restricted to Something Easy
BUGGER - Behaviourally Unstable Geographic Grouping – Extermination Recommended
TOSSER - Thick Or Stupid – Simple Education Required
SHITE - Sadly He Isn't Terribly Enthusiastic
TWERP - Terminally Worthless Educationally Restricted Pupil
SCUMBAG - Simply Can't Understand – Mostly Bleats And Grumbles
LOSER - Lack Of Sense Exerts Restrictions
SHITBAG - Seriously Hyper-Inactive, Terminally Below Activity Grade
WANKER - Wandering Attention, Never Knowing Educational Requirements
PRICK - Permanent Restriction In Core Knowledge

Also the two cleaning products which no advertising agency wanted to promote:-

1. Finest Universal Cleanser Known...."If Persil won't whiten it F... It!"

2. Best Universal Grit Grime and Effluent Remover.

Don T.