From Longman Dictionary of Contemporary Englishchaserchas‧er /ˈtʃeɪsə $ -ər/ noun [countable] DFDa weaker alcoholic drink which is drunk after a strong one, or a stronger alcoholic drink which is drunk after a weak one a pint of bitter and a whisky chaser
Examples from the Corpus
chaser• He'd never had a name as a chaser and I couldn't imagine him picking a time like this to start.• Winning trainer Simon Dow regards the winner as a chaser in the making.• A shot of tequila and a beer chaser, please.• Duncan had left Myeloski propping up the bar, drinking his customary vodka and Budweiser chaser.• He also phoned a local weather scientist and experienced chaser, Greg Thompson, for advice.• Ian Chivers was third at the top, leading five chasers up to the leaders.• And in the past couple of years, his storm chasers have been left with little to chase.• Again and again, he cuts from the chase to the chaser. 