The act of taking a crap, finishing the roll of toilet paper, and neglecting to replace the empty roll with a new supply. This sets the stage for the next unsuspecting individual to sit down and pass a bowel movement not realizing there isn’t a square-to-spare (i.e. square of toilet paper, from Seinfeld). The ambush can easily be prevented by keeping a spare roll of toilet paper under the sink provided the dumb ass who is saved by the spare replaces it.
Oh Sweetie (i.e. significant other)! Someone forgot to replace the toilet paper again and I got ambushed!
by Skip321 March 3, 2008
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The act of ambushing your friends with a chick on your arm at an clearly understood testosterone-only event, such as a poker party or chasing skirts at a club - esentially, bringing sand to the beach.
I can't believe John ambushed the poke party with his girlfriend. Usually, I take his money before showing him the door, but in this case I didn't even bother opening it.
by Dean Barbella May 21, 2008
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the act of pantsing a female, only to realize that she is in fact not wearing underwear.
Tina was casually walking down the street when she was suddenly ambushed by an elderly woman.

"mom! I just saw that lady's vagina!" exclaimed the small child who witnessed this vicious ambush.
by umsolikeokay September 22, 2013
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The act of being suprised by a woman's unkempt, unshaven pubic region.
ambush - He pulled off her panties and was surprised by the copius amounts of pubic hair, it was an ambush.

ambushed - Jenny hasn't shaven herself since the late 70's, I went down on her and got totally ambushed.
by Barnold April 1, 2004
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when your giving a girl a shocker and you bust the skin inside between her asshole and vagina
i was fingerblasting jennys holes and i gave her an ambush....there was blood
by Drinell October 10, 2005
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When someone walks into an arguement thats been set to catch them off guard.
Getting home after an all night drinking binge with friends the individual was argue-ambushed by their mate who had been waiting up all night.
by jpg3 October 15, 2011
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On your laptop you mistakenly select "Shutdown" instead of "Sleep". Windows begins the update process and request that you do not power off or unplug your computer. This usually occurs when your preparing to leave the library after a long night of studying.
Girlfriends text: "Hey you want to come over?"
You text: "Sure...leaving the library and will be there in 5 minutes!"

<Time Elapse>
Knock Knock...
Girlfriend: "You're 3 hours late..."
You: "Sorry I got update ambushed right when I was about to leave"
Girlfriend: "Oh no! Are you alright?"
You: "Yeah I'm fine."
Girlfriend: "What are you supposed to do?"
You: "Well usually I give up, smoke a bong full of Fruit Loops, and head to bed."

Thanks Microsoft!
by tm4c September 26, 2011
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