(A mechanic phrase) to give up on a project or stop troubleshooting a car.
"This is ridiculous! I'm feel like i'm going to slam the hood."
- Verb/Noun
1. Sucking someone's genitalia with fury or great force
2. Sometimes is used as harsh or devastating criticism of unpleasuable and often painful oral sex
3. Often used used to describe someone as "kissing ass" usually in a blatented or self-degrading way
Tom: Bobbi gave me head last night and it was a real mouth slam
John: Ya man, I was drunk one night and she mouth slammed me till she drew blood
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Tom: Did you hear BK in English 101
John: Yah, she was mouth slamming that Professor all class; even he was getting tired of her banter
Slam cannon is when you take 80 Viagra and race it to see which happens first you die of heart attack or you fuck so hard your dick falls off.
"So sad Tim passed but he did it cool GF said he died doing a slam cannon"
the act of giving amazing sloppy toppy
matt: yo i bet she gives terrible head
marcus: na cuh she gives the wickedest slam
The slamming of the charging handle on an MP-5 causing the bolt to fly forward and loading a round into the chamber
While playing some Call of Duty...
Bob #1: Whoa, dude, did you see that?!?!
Bob #2: See what?
Bob #1: your guy on 'Crew Expendable' just did a HK Slam