jism, gism /jizˈəm/ or jissom /jisˈəm/

1. Energy, force (informal, chiefly US)
2. (also jizz) semen (vulgar sl)

• back rests
• backronym
• backronyms
• back room
• backroom
• back rooms
• back-rope
• back row
• back-row
• back rows
• backs
• backsaw
• backsaws
• backscatter
• backscattered
• backscattering
• backscatters
• backscratch
• backscratched
• backscratcher
• backscratchers
• backscratches
• backscratching
• backscratchings
• back-seat driver