the.com/swap
Two things trading places, sealed with a handshake and zero refund policy.
means To exchange one thing for another, or the act of doing so.
from From Middle English swappen, to strike or slap — because medieval deals were sealed by literally smacking palms together.
Original meaningTo hit, not to trade.
FinanceSwaps move trillions across global markets daily.
ComputingSwap space is RAM's overflow parking lot.