Sentence:  After a three-day Torquay-to-Sydney road trip with his hosts, Noll rejoined his American temmates, unshaven and stinking of alcohol, the Team USA badge ripped from his warm-up jacket and replaced by an Aussie-made patch of Disney character Gladstone Gander <WSD>sculling</WSD> a frothy mug of beer. 
Meaning of the word marked with <WSD> tags:  To drink the entire contents of (a drinking vessel) without pausing.