keister /kēˈstər/ (US sl)

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

• ups-a-daisy
• ups and downs
• upscale
• upsee
• upsees
• upsell
• upselling
• upsells
• upsend
• upsending
• upsends
• upsent
• upset
• upsets
• upsetter
• upsetters
• upset the apple-cart
• upsetting
• upsettings
• upsey
• upsey Dutch
• upseys
• up shit creek
• up shit creek see under
• up shit creek without a paddle