mucous or plegm emitted during sneezing or coughing especially when it is projected on to oneself.
damn, i just gaffed on my arm.
by tim December 16, 2003
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The attempt to overcome the negative effects of one's gaffe
After the candidate made an awkward reference on camera, her supporters went on TV immediately in a gaffe-termath
by Una Malachica May 27, 2008
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British slang usually directed towards someone or yourself as being a complete mess, disorganized, and/or has no sense of direction.
"These days I've been all over the gaff"

"Where the bloody hell are you going?! You're all over the gaff!"
by Pseudonym Wizard November 04, 2009
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The act grabbing a womans bottom lip as if you just caught a trophy bass, then proceeding to spit in her mouth...
Man grabs forcefully grabs a prostitutes mouth and horks a loogie in it... " UGHhHH WTF!!!" she said. He shouts.. "Dis how we do down heerrr... Alabama Gaff Hook!!!"
by Shroom, Gaff Hook Grady April 20, 2011
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The typical Scottish lad lifestyle of getting into other girls, where;

1. Graft her on Snapchat, Messenger, etc.
2. Plan or arrange to meet at a Gaff (house party)
3. Shag (have sex) with the girl in a bedroom of the same party (or similar)

It is then customary to follow the Pump and Dump scheme to then repeat the process with a different girl.
"John you planning on getting stuck into Susan tonight?"
"Aye, doing the old Graft Gaff Shag with her"
by Jdiddee May 23, 2016
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to be completely locked outa yer face and making a tit outa yerself
OR
to be all over the gaff WITH someone is when they're riding the shite outa each other
you and him were all over the gaff WAH!
that choung one was all over the gaff last night
by Some Who Knows March 02, 2007
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