A Gibbs is a sexual act where a male licks or fingers a females vagina until she cums, he collects it in his mouth, spits it on her breasts and rubs it around with his hands and in some cases, his penis.

It's a very dirty act for some but alot of fun for others.
Example, "Eww I walked in on Dalton giving Jess a Gibbs, she's a very dirty girl she does stuff like that with him all the time, they love it but I believe it's gross, the foul two belong together".
by hornyboii95 March 17, 2013
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Awesome, amazing, cool, ridiculously awesome, sick, great
That movies was Gibbs man
by Zachnoro September 1, 2013
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A person who mooches a lot. They're always taking stuff from their friends, mostly food and drink. But everyone has accepted the fact that they mooch and only pretend to mind.
Friend: "Oy, NO! Stop stealing my soda! Ya Gibbs."
Gibbs: "Hah, you know you don't really care anymore."
Friend: "True..."
by moocherr January 24, 2009
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when an old man uses jergens lotion to whack off inn his office
Gibbs was j\being gay in the back of the class with little boys.

written by Joe K and Joe C.
by Kosar and Cappello December 8, 2004
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A word used to define a person or event which is awkward or to be held in disregard.
Boy: "What's your MSN address"

Girl (Lying): "I don't use MSN"

Girl 2: "Is that Gibbs over there?"
by AfroHeath April 12, 2009
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used in chat/AIM slang as a way to denote that the other person has just received a minor slap to the back of the head, like what Leroy Jethro Gibbs gives his team.

The slap is a punishment, usually done when the person has done/said something stupid.

Can be used as an expression of aggravation
H0tChick101: I met this hot guy...
TalkaTalk20: His name?
H0tChick101: James. He's tall, auburn haired, and hazel eyed.
TalkaTalk20: <Gibbs>. That's my boyfriend.

DiNozzo: I've got this great new toy
McGee: Great, now we won't hear the end of it
DiNozzo: <Gibbs> Probie, come on
by Sans0uAvecV0us March 23, 2009
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To smack someone on the back of the head with an open hand. Derived from the trademark slap delivered by the character Leroy Jethro Gibbs to his underlings on the T.V. show N.C.I.S. To deserve a 'gibbs' or a 'gibbs-smack' the person getting it should have done something stupid, vain or dangerous.
When I found out he was cheating on his gf that was one thing; when I found out the asshat was hitting on jailbait in her favorite bar, I gave him a gibbs he'll never forget.
by shoopyou March 30, 2009
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