Jeff

A particularly stinky gaseous emission, deadly if inhaled for my the a second or two.

Did someone fart?. OMG, it's a JEFF!

by Not your wife December 13, 2010

Jeff

A term used to describe a complete loser. A "Jeff" could be someone who wears cheap or tacky clothes, someone who is socially awkward, a loner, or just a complete asshole. Jeff can also be interpreted as a more specific version of krog.

hey check out that jeff over there with the roller-backpack and Obama t-shirt

by jfizzle4 October 25, 2010

Jeff

That bloke u talk to on this

#jeffsalegend #yupjeff

by Fathead98 April 29, 2019

Jeff

Jeff

Jeff

by Fuckingswett dude May 23, 2019

Jeff

Jeff works for the urban dictionary help center
he gets aggravated really quickly and was really mean to me

"Jeff wouldn't let me talk to NANCY"

by I shall be left anonymous February 1, 2019

Jeff

Jeff is gayer than your mom

jeff is so gay

by SubbedToPewDiePie February 27, 2019

Jeff

1: (noun) An endearing but slightly moronic person. A waste of space, but in a nice way.
2: (verb) To waste time, to Jeff.

1: Rachel is a big jeff.
2: Rachel spends most of her time jeffing around to the sound of radio 4

by Eddie356 January 30, 2008