What is Jap-slap?
1.
An open handed slap to the face. Reasons: stupidity, retribution or to rebuke a whiner. A callous and contemptous blow in order to restore sanity in their own little world.
I jap-slapped Ted for complaining about sprinkles on his donuts. Then I jap-slapped Jessica for being so stupid as to agree with Ted.
2.
A strong slap given out of annoyance or meanness which leaves the recipient slightly dazed and confused.
From the Malay phrase "penampar Jepun" to describe harsh treatment by Japanese soldiers during the Malaysian occupation of WWII.
HAHA! My dad just pimp-slapped, bitch-slapped and jap-slapped my little brother.
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3.
The action taken to punish a person for a silly or stupid mistake, often in a playful manner. The name derives from asking the unaware victim to place his or her thumbs on the outer corners of the eyes and stretching the eyes to simulate an Asian appearance. Then the slap can be adminstered without a flinch diverting the blow.
I Jap-slapped my brother when he admitted to my new wife that we had a stripper at my bachelor's party.
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4.
In the act of assault or other harmful activities you slap a japanese person while they are running at you.
Jap-slap can also be used just by saying 'Jap-slap' while slapping somone around the face.
'Jap-slap!' said Peter as he hit Hiro round the face.
'That's the 5th one today' said Hiro, calmly massaging his cheek.
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5.
definition 1: When you slap someone with your penis, normally around the face.
Definition 2: To be slapped on the end of the penis.
Dude1: dude you just hit me on the end of my dick.
Dude2: ye man you got Jap-slapped
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6.
When backhand some bitch for pissing you off and the knuckle marks and laugh at them when they are on the ground crying like a little child
Ali fighting anyone of his opponents