'double up' definitions:

Definition of 'double up'

(from WordNet)
verb
Bend over or curl up, usually with laughter or pain; "He doubled and vomited violently" [syn: double over, double, double up]
verb
Share a room or a bed designed for only one person
verb
Stake winnings from one bet on a subsequent wager [syn: parlay, double up]

Words containing 'double up'