What is Hamsterbating?
1.
the hamster version of 
even though they are actually cleaning themselves, it looks more like they are pleasing themselves
Bruno: Hey man, what in the world is your hamster doing?
Alfie: Oh, don't worry about it, he's just hamsterbating.
Bruno: Gross man, you need to get him a woman!
See 
2.
a hairy person who masturbates
Rememba when Pat was caught by a security in da bathroom for
jacking off ?
-His hairy ass, dat man was
hamsterbating !
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Random Words:
1. 
A phrase that has been modified from its childish version 'Nanny Nanny boo boo' to fit adults much better. It is a taunt.
Jay..