blol is a messenger short hand meaning Big Laugh Out Loud

Used to describe something that is more than hilarious

The origins of "blol" are still somewhat vague, but it has begun to replace "lol" in most texting and email use. the B could stand for "big", although some have speculated it could be "barely".

The other point of contention is how it's pronounced. Accepted pronunciations:

Blo-wel
Bel-oh-el

blondly laughing out loud or blonde laughing out loud(to be used by true blonds only)

Blol is a acronym for blog lol.

barely laughing out loud

Laughing out loud during oral sex as a result of your partner's shortcomings.