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1.
(acronym) When your wireless connection craps out on you in the form of your computer saying the connection has "Limited or no Connectivity" (thus leading to the acronym). Occurs when your computer recognizes the network but is unable to confirm an address.
I was on wireless at my school when all of a sudden the webpage didn't load and then I saw the yellow bubble going back and forth on the wireless connection icon in the system tray. And sure enough, a yellow exclamation point appeared and my connection had LONC'd.
by An Excommunicated Elf April 05, 2009
 
2.
To shit oneself on orgasm
Oh my god Delvos just lonced himself
by PimpMaster July 02, 2003