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.
A Teenager with an undeveloped body and an egg shaped head with a curvy nose, these people are VERY annoying and copy the nearest person to lickarse. can be delt with by ignoring or walking away, there has been a secret government campaign to execute all gibbs, but theres one out there who is still alive and making poeples life a living missery
is that an annoying tire screech? or is gibb talking? OH GOD PLEASE MAKE IT STOP!
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".