Verb: double up
- Share a room or a bed designed for only one person
"The students had to double up in the dorm rooms due to overcrowding"
- Bend over or curl up, usually with laughter or pain
"He doubled up in pain after being hit in the stomach";
- double over, double
- Stake winnings from one bet on a subsequent wager
"He doubled up his initial winnings into a small fortune";
- parlay
Derived forms: doubles up, doubled up, doubling up
Type of: back, bend, bet on, flex, gage [archaic], game, punt, share, stake