look up any word, like donkey punch:
 
6.
cowpat (Scot.)
Och, awa' an' stick yer heed in a plab!
by peetoo February 08, 2011
 
1.
The art of supa-coool. A strong reference to the style of the 1980's, not only in the fashion rhelm but also applicable to the unique life style. 1983 to 1987 are very representing of plab.
Look at the gear he's wearing! That guy is plab!
by Joseppe Gunsmoke August 12, 2003
 
2.
Plab is just another word you say to express your feelings like 'groovy' or 'rad' and 'awesome' even 'cool', just better. There are other words that branch off of plab such and plabfulishious, very plab, unplab, plabtastic, plexy, etc. the possibilities are endless!!!! just get creative and use the word plab!
"oh man that roller coaster was plabtastic!"
or
"you are so plab!!!"
or

"betsy is so mean!!"

"i know she is unplab!!!"
or
"Oh my gosh, you are so plexy"
by purple cat disorder July 08, 2009
 
3.
adjective describing 1980's behavior, activity, and or individual
by Sicko August 12, 2003
 
4.
A platypus with a plan in a bus.
Those plabs are scaring me.
by Sectumsara November 03, 2010
 
5.
The action of blowing raspberries while taking selfies, so that your lips look similar to that of a horse.

The best way to look ugly in a photo, usually accomplished easier by those gifted with fuller lips - the bigger those suckers the better the plab
Plabbing in a selfie

Or come on everyone "let's plab in this photo"

"Omg look how crack up her plab was, dam those lips"
by Heartyfarty July 08, 2014
 
7.
A plan thought up by a pleb
Guy1 - "Dude, we should stick mentos in coke bottles and then try and drink it!!"

Guy2 - "Wow!! What an amazing plab....."
by RichyRich1987 April 12, 2010