a blowjob (pronounced "kiffy" as in spiffy)

A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.

to suck a guy off; a blowjob

"kiffe" is used in French as a verb (kiffer, in english to kiffe), as an adjective (kiffant, in english kiffable) and as a noun (kiffe, a kiffe)... or just use it how you want to!

Kiffe comes from an arab word (kef) which means to like, to enjoy, a pleasure... which has been "imported" into France by North African people... and became "kiffe".
It simply means "to really enjoy someone or something!"
e.g: I kiffed that trip!
I would kiffe to meet her;
She really is kiffable
What a kiffe to drive that car!

Because it comes from some sort of French suburb slang (langage des cités), but is now used by everyone (though it is still 'slangish'), you can use it how you want to!

If anyone was wondering how to pronounce it, it sounds the same in english say "keef", like a reef but with a "k" instead!

SO, hope you kiffed that! And join the fan club on Facebook http://www.facebook.com/s.php?q=invite+11&init=q&sid=2afc0ee37d8b21500797309a17c71f6c#/pages/Invite-11-of-your-friends-and-the-word-kiffe-will-get-into-a-Dictionary/65920805676?sid=2afc0ee37d8b21500797309a17c71f6c&ref=s

THANK§ !