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3.
The act of thinhing.
Will you thinh with me?

or

Can I thinh you in the butt?

or

It's all fun and games till someone gets thinhed on.
by Ljay. March 27, 2005
 
1.
the epitome of kindness and gentle natured. Also amazing in bed.
I got thinhed last night.
by lisa January 28, 2005
 
2.
synonym for whipped.

when a man is being man-handled by his girlfriend.
instead of using whipped, substitute with "thinh".

EX: dude you are being thinh-ed by your girlfriend.
by bushedrush June 27, 2009
 
4.
a big left cheek.
Synonyms:
Douche
Douche bag
doucheberry
loser
commie
big left cheek
asian
That Thinh is a big left cheek.
What a thinh.
Did you see the mole on her Thinh?
by Mackel Bellis April 02, 2006