plural of back, crack and sack

A form of non-bacterial endocarditis seen in systemic lupus erythematosus (SLE), and the most common cardiac presentation of that disorder.

(UK, historical games) A children's dogpile game played in Oxfordshire and other areas of Britain.

(UK, historical games) Alternative form of more sacks to the mill.

plural of sack o' shit

(slang) To go to bed.

(games, racing) A race in which competitors stand in sacks or similar items and try to be the first to jump to the finish line.

Something to be suspicious of.

(slang) To fall asleep, usually from implied exhaustion.

A waterproof fabric shell designed to slip over a sleeping bag.