slappynuts 

An extremely bastarsdous or cowarldy person

That friggen slappynuts pinched the bag

slappynuts by Krazy Kate August 27, 2006

Sergeant Slapnuts 

A person who open-handedly slaps your ballsack when you are not looking.

Sergeant Slapnuts nailed Dweazy square in his ballbag causing him to writhe in pain.

Sergeant Slapnuts by Phartman March 18, 2011

slapnuts 

a person who does not know how to do anything at all.

the slapnut couldn't pour piss out of a boot with instructions on the heel.

slapnuts by JOE December 22, 2003

slappynutz 

Serious sexual activity. Hardcore and very fast moving with the testicles slapping up against the "taint" area of the female from the seriously fast sex. Usually occurs the most during doggy-style or plain 'ol hyperspeed missionary.

Wow, me and Mandy were having some serious sex, slappynutz were in full effect and I had sweat just fallin off me and my balls. We must have lost 10 pounds each from that 45 minute sexual hurricane.

slappynutz by Schwagner December 7, 2006

slapnuts 

commonly used insult, suggests the person jacks off a lot.

Shut the fuck up, slapnuts.

slapnuts by kb June 26, 2003

Slapnuts 

An idiot who deserves to be kicked in the man marbles and slapped across the face for being such an ignorant fool.

Hey Slapnuts!

Jimmy you are such a Slapnuts!

Slapnuts by John McNally April 23, 2008

slapnuts 

When your pounding a girl so hard your balls slap against her.

Yeah I took her home last night and gave her some slapnuts for dinner

slapnuts by Frank Grimes April 13, 2005