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3.
A generally unserious rear collision in a car. Also to sound like crunch or crash. You don't thrutch someone from the side as a rule. Concertina style crash rather than bouncing off
I didn't see the car ahead stop and I thrutched him.
by tartrazine August 10, 2010
 
1.
The name given to the "pressure" applied to the internal muscles required to push out a turd.
"That curry had me thrutching like fuck the next day."
"I thrutched so hard I nearly popped my grapes."
"A night with big Jake left Wendy with no requirement to thrutch on her next visit to the lavatory."
by Mikey Lit's January 23, 2004
 
2.
making a grunting noise and doing a strenuous movement, requiring a lot of strength.
often used in climbing, rugby, and pooping.
(Dennis the climbing instructor:THRUTCH! GIVE IT SOME BEEF!
(climber:uurrgn!
*climber thrutches,reaches out for next handhold, legs start to shake from the strain, and they only just get the handhold*
(Dennis:nice on, good thrutching there!
by sethkasketch June 11, 2008
 
4.
The action of hip movement with or without a sexual partner mimicking the act of intercourse. NOTE - Can be applied to animals.
Dog's at it again, thrutching my leg last night.
by Tboy June 03, 2005