The act of making yourself laugh when either no one is around, or no one else is laughing with you.
"Justin needs to cut back on his laughterbation habits, its starting to become a problem."
by CheetullBro August 28, 2008
The act of laughing until you bust a nut.
Jim: "So I watched Grandma's Boy the other day and laughed so hard that I came."

Bob: "Ah nothing like a good ol' evening of laughterbation"
by lucraine July 25, 2010
When on cracks oneself up. Makes oneself laugh. Tells jokes for themselves.
Laughterbation has become on of Gretchen's favorite past times. Sometimes, on Saturday nights, she stays home imaging funny things she might post on Facebook, and just cracking herself up.
by Victorygardener September 07, 2014
to laugh while you masterbate
the picture was so hot and funny laughterbation was the only thing i could do
by parry henis October 12, 2007

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