Rusty Fog 

A fart.

"Kris just let out a rusty fog right in Jo and Kim's faces"

Rusty Fog by Krijim October 8, 2011

London Fog Horn

During fellatio the recipiant jabs the donor's chest directly between the lungs. The donor then reacts by expelling a prolonged deep tone, comparable to that of a fog horn.

Last night my boyfriend gave me a London Fog Horn. It woke my grandmother up.

London Fog Horn by Garyland May 29, 2008

Brain Fog 

When you have such and amazing orgasms or set of orgasms, that your head feels like it is in a fog and you can't think straight.

Dude, my girlfriend has Brain Fog, she just got up after sex and walked into my wall.

Brain Fog by jkuile June 10, 2009

avoid like the Velvet Fog 

To evade something at all costs. See avoid like the plague.

Nuts, I avoid like the Velvet Fog, because I'm deathly allergic to them.

avoid like the Velvet Fog by Ouizardus July 5, 2006

london fog 

have a girl suck you off and then turn around and fart in her face

Ill tell you one thing, that bitch wasnt expecting a London Fog in her face...that shit stank!

london fog by birdman May 23, 2004

the fog 

teacher that is reasonably detached from students, but manages to be a good teacher, and crack a few inconspicious jokes. Derived from my teacher, Mr. Fogarasi

Mrs. Appleton is the fog!

the fog by Mars November 9, 2003

Vacation Fog 

The fog that envelopes a worker's brain for several days on returning to work after a long vacation. This fog sometimes begins to creep in even before anticipated vacations.

My vacation fog finally lifted the third day back on the job.

Vacation Fog by eFrazes July 14, 2012