You would say or write Prolly if you are talking or typing fast. Mostly used in an email or IM to someone that you really don't care if you spell correctly or not.
He is prolly going to jail
by Brenda Kay May 20, 2007
by SwaggieMcsweg January 25, 2015
by Avgpeen12 May 30, 2011
by szaboz July 13, 2022
‘Prolly not’ is an abbreviation of the sentence - ‘probably not’ when someone says this, it’s neither a yes or a no, the person is more than likely not sure.
by ilymipha July 13, 2022
It is prolly the case that this word was trademarked by Mariah Wheat against her beautiful wife Amy Green who tried to steal such a magnificent word in attempt to lay claim to inventing it. Boo-yah.
by Seadog92 November 28, 2014