irishslang.info

Either an ugly woman or a very angry looking woman

irishslang.info

Stupid, rare

 "That's wick" 

irishslang.info
She is most unattractive!
irishslang.info

A disruptive person

e.g. "sit down and quit bein a Yahoo" / "pack of Yahoo's them!"

irishslang.info
you are telling lies
irishslang.info
Your a stupid/Mouthy fella.
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after a 1930's quasi-fascist group

irishslang.info
na, keep it