guzzling

Guzzling is drinking greedily or in large quantities, often with enthusiasm and little restraint.

The word suggests rapid, noisy consumption—someone guzzling beer at a party isn't sipping delicately.

By extension, guzzling applies to anything that consumes resources voraciously: a gas-guzzling SUV burns through fuel the way a thirsty person downs a cold drink.

He spent the afternoon guzzling sodas by the pool.