A radio announcer (typically of the "Boss Jock" school) who attempts to add excitement to his delivery by talking from the back of the throat, a common affectation in 1960's and later "Top 40" formats.
The afternoon drive guy on 108.1 is the worst puker in the market.
An extremely intense circuit-style workout session, typically involving one or more of the following pieces of equipment: kettlebell, sandbag, sledgehammer, tractor tire, thick ropes, or heavy medicine balls. The word derives from the fact that the person may exhibit either emesis or a burning sensation of vomit in the back of the throat, during or after the workout.
That MMA fighter has been beasting out pukers almost every day to train for his fight.