Definition from Wiktionary, the free dictionary
upset; turn over; to tip; to pour; to go home; to the contrary; inverted; to fall; to collapse; to topple; to change; to fail; bankrupt
to grasp; to hold; support; manage; direct; maintain
|the weapons of war; arms|
|simp. and trad.
Literally: to hold one's weapon backwards (so that the handle is offered to the enemy)
- to give up one's advantage or power to someone else