Top Definition
To interject with a completely non sequitur remark composed of suck and phail. Typically, L'mujing contrasts everything currently presented in a topic, and the verbalizer is almost invariably punished by way of defenestration. Note that L'mujing never evokes a positive reaction; that variety of randomness is exhibited in works such as Aqua Teen Hunger Force.
"It turns out the spot was a tumor. I don't know what we'll do..."

"Aw, sorry man. If there's any way I can help, just let me know."

"LOL this is a wasted post!!!11 loooool"

"The hell?"

"You really L'mujed that one, jackass."
by Racnor May 22, 2007

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