when having sex, right before the male is about to ejaculate, he pulls out and fires one in the girls/guys eye thereby blinding them. then as he begins to turn around in a complete circle, he farts in her face as his back is facing her causing quite the unpleasent smell, and when he comes around to complete the circle, slaps his partner in the face with his cock until his partner is disoriented. thus giving the full effect of being in london on a foggy day: you can't see anything, it wreaks lik crap and you're all dissoriented.
man you should have seen her stumbling around after i gave her the london fog
by DJ Raven January 10, 2007
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A drink in which Earl Grey tea is mixed with steamed milk and vanilla.
Earl Grey tea is nice, but I prefer a London Fog because of its' sweeter and richer taste.
by Alkadix November 15, 2007
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1. When a woman is receiving cunnilingus and expels a fart into her partner's face, intentional or otherwise.

2. When you're going down on a lady and she farts in your face.

Alt: For a queef / use the phrase Parisian Mist.
I wasn't super into him so when he started going down on me, I gave him the London Fog!
by Lady Deathstryke October 23, 2015
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After fellatio, when the receiver shoots their load into their
partner's eyes so that they can't see.
This one time I really didn't want to return the favor to this girl,
so I gave her the London Fog and busted out of there.
by Travis Urban December 20, 2006
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Farting in your partner's face while they cum while speaking in a british accent.
Sam shouted "I'm coming guv'na, if I can just see through this London Fog!" while cumming in Lizzy's mouth as she simultaneously farted in his face.
by Lord Smellderberry August 24, 2018
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Cumming on your partner's face/forehead/eyes while your balls are still in his/her mouth.
My wife is so GGG. On my birthday, she let me give her the London fog.
by Ta2Demon June 3, 2019
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The act of wiping your wrist between your butcheeks then confidently asking the nearest person to smell your new cologne.

For best results be sure to leave your wrist moist, hot, sticky and with a slight discoloration.

Can also refer to someone, or something that smells like shit.
"Hey check out this new new cologne I got, it's called london fog."

"Do you wear London fog or something? Cus you smell like shit."

"It smells like london fog in here."

"Your breath smells like london fog."
by kballs April 17, 2009
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