Third-person singular simple present indicative form of piggy-back

Third-person singular simple present indicative form of back water

(baseball) Two home runs hit by consecutive batters

(telecommunications) The direct connection of the output of one telecommunications device to the input of another.

(travel, UK, Ireland) Any of a series of airline tickets, issued with overlapping travel dates, used to circumvent airfare minimum stay requirements.

plural of back to back jack

plural of back-to-back connection

plural of back to back ticket

(idiomatic, euphemistic) Two people united in sexual intercourse in the missionary position.

plural of three-quarter back