Leg slapper

Like a knee slapper, but when you're mad the joke isn't funny.

Burt: Why did the chicken cross the road?
Haley: IDK WhY?
Burt: To get to the other side.
Haley: (Screams and slaps leg really hard) That's a leg slapper!

two slapper

term used by investigators to describe a suspect/target who requires one slap to start him talking and a second slap to shut him up...

The cops knew their prayers were answered when they realized Carl was a two slapper...

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knee slapper

Sarcastically used to point out an unfunny joke. It originates from the act of slapping one's knee during vigorous laughter. Later took on a sarcastic meaning.

Comedian: I just flew in from Los Angeles, and boy are my arms tired!

Audience member in sarcastic tone: wow that's a real knee-slapper

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ball slapper

When you're having sex doggy style with a girl and your balls slap up against her lower belly.

"It was a ball slapper of a good time!"

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Dapper slapper

A lady who has the appearance of being prim and proper. Well dressed, polite and seemingly perfect but deep down she's a slapper.

Nigella Lawson is a right dapper slapper!

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oyster slapper

A lesbian.

She's not into guys; she's an oyster slapper.

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slapper stand

A semi-affectionate term for night club podiums which the drunkest/most extrovert members of your party will want to dance on.

"Give us a leg up onto the slapper stand, they're playing 'Club Tropicana'!"

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