To be confident, spirited.

Using only one hand.

(archaic, idiomatic) Annoyed, angry.

The quality of having a dominant hand; left-handedness or right-handedness. / Chirality / The possession of only one hand or the ability to use only one hand; the loss of the use of one hand.

plural of one-track mind

(idiomatic) Synonym of add fuel to the fire

plural of return on investment

(finance) A benefit gained by an investor from an investment.

Alternative form of strike one's flag

(military, especially naval) To take down one's national or other representative flag in order to indicate surrender. / (idiomatic, by extension) To yield, give up, or surrender.