To gamble in a wild and high-variance fashion. Often applied to loose and aggressive play in poker, or by poker player to other forms of high variancegambling, like baccarat.
A word becoming common for describing a Condom / The use of a Condom in New Zealand.
A gumboot been a item of footware that is made out of rubber and completely waterproof.
Jimbo "Bro, heading to down Hamilton this weekend ay."
Kev "Ohh true, I got the clap last time I was there ay, gumboot up dude, hard!."
Jimbo "Haha, will have to double layer!"