Twelvies that take one sip out of a Vodka Cruiser (flavoured vodka drink) and then caption it with 'OMG SOOOO SMASHD' (or words to that effect. Usually accompanied by a duckface with the V sign in a selfie photo posted to social media sites.
Cruiser Troopers can be located at underage parties, train stations, local shopping centres or even down the police station being charged with underage drinking.
Ricky: Jesus, Natalie and her friends are cruiser troopers.
Dicky: Look at them making duckfaces and taking selfies.
Ricky: I hope they get picked up by a blue light taxi soon.