Lolgag Share definition Flag Verb. To be rendered physically ill at the mention of the word LOL. If I'm funny, say haha or heh or <chuckle>. Never say LOL unless you want to trigger my lolgag. <retch> Lolgag by sherox March 11, 2010 0 0 Get merch Get the Lolgag mug. Buy Now — $32.95 See more merch