Anagrams of: UNPINNING

• a mutual promise of a couple not to date anyone else; on college campuses it was once signaled by the giving of a fraternity pin

• a humorous play on words

• a feeling of deep longing

• a sharp high-pitched resonant sound (as of a sonar echo or a bullet striking metal)

• a river in western Thailand; a major tributary of the Chao Phraya

• hit with a pinging noise

• sound like a car engine that is firing too early

• make a short high-pitched sound

• contact, usually in order to remind of something

• send a message from one computer to another to check whether it is reachable and active

• (baseball) one of nine divisions of play during which each team has a turn at bat

• a one-horse sleigh consisting of a box on runners

• remove the pins from; unfasten the pins of

• domestic swine

• a coarse obnoxious person

• a person regarded as greedy and pig-like

• uncomplimentary terms for a policeman

• mold consisting of a bed of sand in which pig iron is cast

• a crude block of metal (lead or iron) poured from a smelting furnace

• live like a pig, in squalor

• eat greedily

• give birth to (piglets)