The the mentally handicapped, and thus often euphoric or hysterical state of mind that follows a night of heavy drinking.
"Sally was definitely on half-speed this morning after Edward 40-hands last night. At Breakfast she almost peed herself laughing when someone pointed out that her shirt was buttoned up incorrectly".
by Jogana Jallenstrom October 29, 2009
by Chris martinez AkA CujO September 29, 2006
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