This means big up the boys if you all in a crowd you all shout big up the massive and everyone knows that you have arrived to the party
by misterrrjosh November 18, 2019
by misterrrjosh October 11, 2021
in other words mattress back describes a fat person you can use it for all people like if they are skinny you would say you single matback and if they are fat you call them a double matback
by misterrrjosh November 04, 2019