keister /kēˈstər/ (US sl)

1. The buttocks, arse
2. A safe or strong-box
3. A case or box

• hair-pencil
• hair-pencils
• hairpiece
• hairpieces
• hairpin
• hairpins
• hair-powder
• hair-raiser
• hair-raisers
• hair-raising
• hair restorer
• hair restorers
• hairs
• hair's-breadth
• hair's-breadths
• hair seal
• hair seals
• hair shirt
• hair shirts
• hair slide
• hair slides
• hair space
• hair spaces
• hair-splitter
• hair-splitters