a grotesquely obese female that makes for a good hit and run because of her zealous eagerness to please
I'm sore from digging out that tons o' fun last night.
by Herb N. Dictionary October 25, 2002
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A women who weighs more than 250 pounds and/or is visibly overweight to the point where she is no longer just fat.
You see that women over there, that is what you call a ton-o-fun.
by A-Man April 1, 2005
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A quantitative measurement of fun dealing with an amount of fun that is over 2000 pounds or more. Usually used sarcastically.
I told Megan that talking to Doug and Josh sounded like tons-o-fun.
by Matt March 10, 2005
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