overset (?.)
- balance
- be lost
- bonus
- capsizal
- capsize
- careen
- culbute
- culbuter
- deck
- dividend
- extra
- floor
- founder
- go down
- gratuity
- honeycomb
- keel
- keel over
- knock over
- lagniappe
- leftover
- margin
- overage
- overcome
- overmaster
- overmatch
- overmeasure
- overplus
- overpower
- overrun
- overstock
- oversupply
- overthrow
- overturn
- pitchpole
- plus
- pourboire
- remainder
- revolution
- sap
- sap the foundations
- scuttle
- send flying
- silence
- sink
- somersault
- somerset
- something extra
- spare
- spill
- subversion
- subvert
- surmount
- surplus
- surplusage
- throw down
- throw over
- tip
- tip over
- topple
- topple over
- topsy-turvify
- topsy-turvy
- trip
- trip up
- tumble
- turn a somersault
- turn over
- turn topsy-turvy
- turn turtle
- turn upside down
- turnover
- undermine
- unhorse
- upend
- upset
- upset the boat
- upturn
- weaken