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To have an erection.
He boinged at the sight of the girl on girl action that was 89.com.
by Turtle October 22, 2003
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2
(N.) The image or sound effect of something exciting.
Hey, I just saw this really tall chick with big boobies. Boing!
by G-Union May 12, 2003
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3
inj. what one says to indicate something awesome, or something sexually arousing
"Boing!"
"What's up, Ron?"
"I just saw a chick with like, size F tits!"
by Reese May 09, 2003
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4
1. Slang term for a well endowed women, in Japan
2. Being sexually aroused
1. Did you see that girl?
Yeah she's such a boing.

2. Man, she definitely is . . . boing!
by SoHumhallelujah April 18, 2009
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5
The action of an erect penis springing out and up, when the underwear is pulled down past it.
"After rolling around on the bed for awhile, I went to pull off his jockeys in order to blow him, and he totally went boing."
by Boingyest March 10, 2013
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6
When a guy/girl is clearly blowing you off (has an excuse ready whenever you wanna hang out),but refuses to actually tell you he/she doesn't "like you like that" to avoid being the bad guy. Instead continuing to lead you on and assure you of how much they do like you and what an amazing person you are.
"He blew you off again? I think you should just give up on him...he's totally Bo'ing you."
by Miss_Kalico May 29, 2009
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7
Boing is an Onomatopoeic Adjective,
Meaning = The Force of Resilience which is skillfully put into a spring by a spring-smith.
It is Sometimes Spelt: "Boioing", to emphasise this word above others near it.
" Take those old cart-springs down to the Spring-Smith;
and have them Re-Boinged!"
by Cyril Squirrel April 01, 2007
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