a way of telling someone to get lost
expression: what the... e.g. "what in under f**k does she think she's doin trying to drive thon big jeep"
Mentally competent - e.g. "He's not the full shilling"
Go F#@k yourself - "Why don't ye go Fack Yourself!"
An Ugly Person "He looks like a bucket of snots"
not a very nice person "the aul git"
Your a stupid/Mouthy fella.
said to someone who has tripped up or bumped into something  AKA a 'dickhead'