Truck carrying litres for one who likes a drink or two?

• Heavy drinker
• Boozy sort who leaves gratuity when consuming litres?
• Pot-valiant, perhaps

Wiktionary Word definitions in Wiktionary
n. 1 A seller of alcoholic liquors. 2 A habitual drinker; a bibber. 3 A breed of domestic pigeon bred to participate in endurance competitions. 4 (context UK railroad English) An open wagon with a tipping trough, unloaded by being inverted (used for bulk ...

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ Marion Harvie, a tippler , was charged in 1646 for turning a guest's horse on the Down. ▪ Mr Putin, we are told, is more of a red wine tippler .

WordNet Word definitions in WordNet
n. someone who drinks liquor repeatedly in small quantities [syn: social drinker ]

Wikipedia Word definitions in Wikipedia
The tippler is a breed of domestic pigeon bred to participate in endurance competitions. Flying results of up to 22 hours (non-stop) have been reported.

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
late 14c., "seller of alcoholic liquors," of uncertain origin (see tipple ). In the sense of "habitual drinker" it dates from 1570s.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Tippler \Tip"pler\, n. One who keeps a tippling-house. [Obs.] --Latimer. One who habitually indulges in the excessive use of spirituous liquors, whether he becomes intoxicated or not.