a lick of piss
of low worth or without worth; of little or no use, importance, or value; good-for-nothing: a worthless person; a worthless contract.
Your ass isn't worth a lick of piss.
Bulldog licking piss off a thistle
A noticeable effect of being unhappy.
Why have you got a face like a bulldog licking piss off a thistle?
bulldog licking piss off a nettle
A particularly ugly or miserable looking person, especially a woman
Christ, did you see that bird Tommo was with last night? She had a face like a bulldog licking piss off a nettle
Face like a bulldog licking piss off a nettle
Facial expression conveying disgust, disapproval, usually seen on an unattractive face.
Jaysus mister, ya shoula seen her when she saw the state of her son - She had a face like a bulldog licking piss off a nettle!
Face like a bulldog licking piss off of a stinging nettle
A very unattractive woman.
'She's got a face like a bulldog licking piss off of a stinging nettle'