Laughing my fucking helmet off... The proper acronym to use via text, social media, etc. when you are considered a “special helmet friend,” and you find yourself laughing uncontrollably...
A laugh so powerful that it's basically saying that you laughed your ass that was fucking so much that your ass literally fell off.
Guy 1: Yo look at this meme!
Guy 2: LMFAOOOOOOOOOOOOOOOOO
Guy 1: Uhhhmmm.. yeah that was funny and all but why are there literally 2 giant pair of cheeks rolling across the floor now..?