Blush like a bitch. Extreme embarrassment or heightened emotional response... usually in the combo of blushing and grinning and generally acting like a girl.
Matt: Wazzup witchu??!
Barney: Watchu talkin' about?
Matt: Every time Susan notices your lame-ass grunge tees you start to BLAB!!
Barney: =L Ohh...
Barney: Watchu talkin' about?
Matt: Every time Susan notices your lame-ass grunge tees you start to BLAB!!
Barney: =L Ohh...
by RockInbUT21 January 4, 2012

by parkay football May 31, 2009

by Timson5stripe January 30, 2014

by Infinite Monkeys October 26, 2011

by Mesila October 17, 2008

Using any form of social media to spread stupidity to as many ignorant and gullible people as possible.
by Josie728 January 22, 2017

When someone is high and they are speaking in gibberish, making no sense at all, except for the person they are speaking to that is also high. High blab can only be understood by another high person.
'Blah blah blah will you play my song?' Friend: 'Yeah dude wtf?!' Non-high person: 'Dude I can't understand your high-blab!'
by Dcgrits January 26, 2015
