Alternative form of you only go around once

A child of a second cousin. / A second cousin of a parent.

A first cousin's child. / A parent's first cousin.

One is cautious if one has been hurt in the past.

Alternative form of once bitten, twice shy

Alternative form of once bitten, twice shy

Alternative form of once bitten, twice shy

Said before closing the bidding for a particular item in an auction, giving other bidders a final opportunity to bid for it.

(informal) Once a person of another race has a sexual relationship with a black person, implying that they will not return to having sexual relationships with members of the former race.

Alternative form of measure twice and cut once