look up any word, like cleveland steamer:
 
1.
to have a time off work,or to have a sickie.Can also mean to have numerous days off work with piss poor excuses but not get a bollokin of your boss.
"think i'll throw a crasky on monday" "can't be arsed goin to work today,think i'll have a crasky."
by Mike Rochips October 15, 2003