A threesome with one guy and two girls. One girl on his face, the other facing her riding him. To complete the move they must be playing with each other's tits.
Dude, last night Jenna and Bailey asked me to join them for a London bridge, it was amazing.
by Captain red beard June 25, 2017

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When two girls have sex with one guy. The guy lays on his back, one girl sits on his face, the other sits on his dick...then they high five....it's a reverse Eiffel Tower.
Paolo got London Bridged last night by Brandy and her mom!
by Lambokaos August 06, 2016

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When someone has a stoma and in a sexual event similar to a threesome the patient is engaged in anal sex as well as in the stoma. This act is similar to the Eiffel Tower.
Let's London bridge that bitch.
by cojo911 June 05, 2015

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it involves two guys and one girl. One guy is holding the girl by her legs and the other by her arms. the girl is giving oral to the guy holding her arms, and recieving vaginal intercours fromt he guy holding her legs.
"dude! me, stan and jessica totally did a london bridge last night!"
by k-boo February 13, 2009

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You and your buddy are fucking 2 girls doggy style and the girls are kissing in the middle and right when you nut you sing "London bridge is falling down" and the hit them both in the head with mallets and watch them hit the deck
Me and Tina where doin the London bridge, I had never seen a bitch hit the floor so hard
by 50one50photo May 24, 2016

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London Bridge – the cleavage between a woman’s breasts.

London, London, London (v.) – the act of doing a “motorboat” to breasts.

You london-london her breasts, when you kiss the London bridge and utter “brbrbrrrr” imitating a motorboat.
Meanie: Dude, do you know the fergie song – london bridge?
Smartie: And?
Meanie: I think she meant an orgy, by saying london bridge.
Smartie: “London Bridge” does not mean orgy or legs-widespread or pussy or whatsoever!
Meanie: What does london bridge mean then?
Smartie: London Bridge was downed by fire. When someone makes your "London Bridge fall down", they are making you very hot. (sexual.) In the song by Fergie of the same name the music starts with fire sirens. "How come everytime you come around my London Bridge wanna go down?" equates "How come everytime I see you I wanna get off?"

Meanie: Nah man you kiddin! London bridge is cleavage, and girls get off when you do london-london-london to their breasts! It’s like motorboat, you do brbrbrbr like a motorboat to the london bridge.
by Dickie Greenleaf October 18, 2012

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London Bridge refers to a woman's panties. When guy makes a woman's "London Bridge fall down", he is making her panties drop to the floor so that they can have sex.
In the song by Fergie of the same name they say, "How come everytime you come around my London Bridge wanna go down?" Which equates to "How come everytime I see you my panties end up on the floor and we end up having sex."
by Social Engineer13 September 06, 2006

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