gru·ber
Pronunciation Key
n. Chiefly Northeastern U.S.
John Gruber. Resident of Philadelphia, PA. See Daring Fireball.
n. unit of measure
An amount of coffee insufficient to fill a cup, but sufficient to leave one without feeling obligated to brew more.
v. gru·ber, gru·ber·ed
The act of leaving a gruber (see n. unit of measure).
Usage Note: grubering has been extended to include the water cooler, the box of coffee filters, the container of coffee and all other shared resources
While the double gruber is not uncommon, the triple gruber remains elusive.
See also: