The Collaborative International Dictionary
Quaff \Quaff\, v. t. [imp. & p. p. Quaffed; p. pr. & vb. n.
Quaffing.] [For quach, fr. Gael. & Ir. cuach a drinking
cup; cf. L. caucus a drinking vessel. Cf. Quaigh.]
To drink with relish; to drink copiously of; to swallow in
large draughts. ``Quaffed off the muscadel.''
--Shak.
They eat, they drink, and in communion sweet
Quaff immortality and joy.
--Milton.
Wiktionary
n. The act by which something is quaffed; a drinking. vb. (present participle of quaff English)
Usage examples of "quaffing".
Usually at this hour Blobel is in his van or at quarters in town if the section is not too far out in the sticks, quaffing schnapps to chase off the morning chill.
Olive said decisively, unstoppering her own vial and quaffing the gray mixture in three gulps.
She sniffed it, drank a little more, then surprised him by bolting the balance like someone quaffing a shot of whiskey.