Facebook ambush 

Lying in wait on Facebook chat until the object of your ambush appears in green, and then immediately sending them a message, commenting on something on their wall or tagging them in a post.

Flaming hot #1: Goddd I can never be on FB chat anymore, that creepshow Mitchell keeps chirping at me
Smokeshow Friend #1: That's the worst. Classic facebook ambush.

Facebook ambush by Brubes July 13, 2011

Porn ambush 

(verb); To suddenly expose someone to graphic images or video of hardcore pornographic materials.

(noun); A spontanious showing of pornographic material unbeknownst to the recipients.

(verb); I totally porn ambushed Mack while he was watching television.

(noun); Dude he got you with that porn ambush last night Mack.

Porn ambush by sneakyhighwaters August 27, 2009

social ambush

A social ambush occurs when somebody you least want and/or least expect to see, ends up standing face to face with you in a social setting like a restaurant, bar, gallery, houseparty, etc.. You are more likely to feel surprised or anxious at first, then mad. Sometimes mutual associates can be aware the meeting will take place but for whatever reason, they do not bother to warn you. The best way to deal with the situation is to LEAVE. No need to say something you might regret later.

I went out with Jenny to that new restaurant last night and Tina just popped up. I felt like it was a social ambush. I walked out five minutes later.

social ambush by jetjet March 24, 2016

The Armpit Ambush 

When you stick your smelly armpits in your lover's face unexpectedly.

Brenda didn't even think I would give her The Armpit Ambush when she went to kiss me goodnight last night. She was in for quite a surprise.

The Armpit Ambush by RoyCoup December 4, 2012

Nigger Ambush

Using advantageous or exploitive terrain to gain a decided advantage over another player and/or players. Mainly used in FPS.

"HA HA i totally Nigger Ambushed that noob"

"these guys are too good, we are getting owned. It's time for a nigger ambush"

Nigger Ambush by Ish&Faust May 2, 2006

Ass Ambush 

1. What happens when diarrhea sudden goes explosive, unexpectedly, can be dangerous. Most of the time painful.

2. Similar to a jump, but happens when your friend or a complete asshole comes up from nowhere and stabs your ass, literally, with a sharp object/lethal weapon. Unpleasant and a dick head move.

3. A sly sexual move.

1. Dude, oh my god, I just had an Ass Ambush and it burns!

2. I was walking home on a rainy day when I was a victim of an Ass Ambush.

3. During sexual intercourse, the man tried to perform the Ass Ambush, a very sly move on his part.

Ass Ambush by A Shit Being December 28, 2010

snake ambush 

the counterattack that a janitor will execute upon waking up during a shadow mongoose resulting in the janitor biting your nose off, which can be very unfavorable. one should take necessary precautions to not allow this to happen and if you are unsure or affraid of this happening to you its best not to attempt the shadow mongoose as it is a very skillful maneuver.

Kichwa: Yo Enya. What happened to yo nose?
Enya: Oh Kichwa, the other day i was going for the shadow mongoose and i accidently hiccuped and that motha woke up and did one of 'dem snake ambushes on me.
Kichwa: Aww. Girl i feel bad for you. You need anything you let me know, aight?
Enya: Thanks Kichwa, your a good guy, im glad to have you as a friend
(Enya leaves the room)
Kichwa: OOOOOOooooOOOOooo EMOOOOOO my life is so bad. i wish i could tell her how i feel. OOOOOoooooOOOOOooooo EMOOOOOOOoooooOOOOOOooo.

snake ambush by team mastadon January 10, 2005