The act of unleashing uncontrollable bursts of laughter privately, (or publicly) to the point of hysteria or hyperventilation. A laugh is unique and entrusted to everyone, but a roister roll is for the gifted few blessed with overachieving glee!
Oh man....while eating at the cafe the other day, Brittany unleashed her roister roll.
A purse that becomes a glorified barf bag for your bodily waste, regurgitation, upchuck, etc. Generally occurs when you get unwanted contact from an ex flame, romantic companion, potential fling, or soul mate.
Dolly: OMG my that dick totally just messaged me and tried to apologize for standing me up!
Tracy: What a douchebag
Dolly: I know right.....I immediately starting rocking my puked out purse, it was all the rage (sarcasm)