1. to drink down in a single draught, to drink quickly; thus chugger n., a drinker; (US campus) chugging contest n., a drinking competition in which each contestant has to down a succession of drinks in a single swallow.
|[||Sun. Times (Perth) 10 May 1/1: Even the star of the Thirsty Thirteen couldn’t persuade them [i.e. vaudeville stars the Klos Sisters] to chug-chug [and] a champagne lunch was also foregone].|
|‘The Idiot Bastard Son’ [lyrics] I don’t know but I chugged a fifth of White Port once and passed out one day.|
|(con. 1960s) Wanderers 34: The guys were getting high, especially Perry, chugging Sevens as fast as he could.|
|Great Santini (1977) 384: The real warhorse among the contestants drank last; this position of honour was reserved for the best chugger in the squadron.|
|Blood Brothers 19: He was chain-smoking and chugging seventy-sevens.|
|Muscle for the Wing 46: Bell [...] took a tentative sip of the bourbon, then raised it again and chugged.|
|Skull Session 181: Damon chugged the beer the barman had set down.|
|Hurricane Punch 177: Serge chugged the mug dry.|
|Riptide Ultra-Glide 117: Serge uncapped a thermos of coffee and chugged.|
2. in fig. use, ‘to swallow’.
|Rivethead (1992) 132: You would have half the work force breaking their backs and chugging the work load while the other half were off playing cards.|