1. (v. i.) To strike; -- with off.

2. (v. i.) To exchange (usually two things of the same kind); to swap.

3. (v. t.) To fall or descend; to rush hastily or violently.

4. (v. t.) To beat the air, or ply the wings, with a sweeping motion or noise; to flap.

5. (n.) A blow; a stroke.

6. (n.) An exchange; a barter.

7. (n.) Hastily.

alternate backscratching bandy bang bargain barter bash be quits with belt biff blind bargain bump burst bust buy and sell change clap clash commute compensate cooperate counterchange crack crash crump deal dicker do business even trade exchange flap flop get back at get even with give and take give in exchange hard bargain horse trade horse-trade interchange knock logroll logrolling pay back permute pork barrel pound rap reciprocate report requite respond retaliate return return the compliment slam slap slat smack sock splat substitute swap horses swapping switch take in exchange tap thwack trade trade in trade off trade sight unseen trade-in trading traffic transpose truck whack wham whap whomp whop