irishslang.info
saying a bird is that ugly you wouldnt even let your mate buck her
irishslang.info
descriptive of a hateful person

Usually used to explain just a bad natured someone is, "he's so bad he would even stel the blessing from the holy water"

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

Monaghan for "Go'way fuck yourself". Equivalent to New York's "Get de fuck outta here".

 Origins thought to be linked to local taxi phone number.

irishslang.info

Not sharp at all, actually very slow - usually used to insult someones intelligence.

"That fella there is as sharp as a beach ball"