Top Definition
An expression used to express laughter, based off the common household utility, a lawn mower, primarily because it sounds like it's "LAWLing" when it is started up. (Similar to the word "ROFLcopter")
Lets start up this bad boy

- LOLOLOlololol...

- LOLOLOlololol...
God damn it!

Now that's a LAWL mower!
by sammyyourasalami September 05, 2009

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