The sensation of having to urinate extremely bad, resulting in restlessness, discomfort, and even considering unconventional spots as possible urination locations.
Person 1- Dude, did he really just piss in soda can?
Person 2- Absolutely. He really had an itchin' for a pissin'
English slang: When a woman is enthusiastic about the possibility of her partner commencing the act of anal sex. The phrase was popularised on ITV's primetime Saturday evening show 'Take Me Out' by it's host Paddy McGuinness.
"Did you Flip reverse her?" "Yeah dude, that girl was itchin' for a switchin'"
A phrase used either to describe one's own feelings (i.e. annoyed by somebody and wanting to gossip) or feelings about somebody else (i.e. feeling that somebody deserves to be gossiped about)
Girl 1: "You okay? You don't look very pleased."
Girl 2: "Grrr. They are really pissing me off. Are you busy tonight? I'm really itchin' for a bitchin'."
Girl 1: "Listen to her! I can't believe she just said that to Max! Wow, that girl is really itchin' for a bitchin'."