CUSTOMER
ADJECTIVES
1611 — ILL-CUSTOMED having little custom
1616 — CUSTOM-SHRUNK having fewer customers than previously → obs.
1669 — ILL-ACCUSTOMED little frequented by customers
1690 — ACCUSTOMED frequented by customers → obs.
NOUNS, PERSON
1502 — CALLANT a customer → Sc. obs.
1831 — MERCHANT a customer, a buyer, a purchaser → Sc.
1852 — REGULAR a regular customer
..20C — KITTLE CATTLE awkward customers
1900 — OWL a late-night customer of a bar, restaurant, etc.
1930 — WRAP-UP a customer easily pleased; a customer who buys readily → Amer. retail salesmen’s sl.
1935 — TAB a customer that, after giving an infinity of trouble, buys precisely nothing → drapers’ & hosiers’ usage
1935 — TABBER a customer hard to please → drapers’ usage
1940 — MOOCH a customer in a retail clothing store who carefully examines merchandise before buying it → Amer. retail salesmen’s sl.
1942 — UP a prospective customer → US sl.
1943 — EIGHTY-SIX an unwelcome customer who is to be denied service → US waiters’ sl.
1961 — ACE a single, unaccompanied customer, esp. in a restaurant → Amer. sl.
1964 — HACK a customer, as in a pub → NZ sl.
1965 — PUNTER a customer or client; often used dismissively → sl.
1968 — MOUSE a customer or potential customer in the used car business → US sl.
1970 — DADDY a customer, a client → US sl.
1975 — WALK a customer who has walked out of a store without buying anything → Amer. salesmen’s sl. (Bk.)
1979 — QUAVERER a vacillating or uncertain customer → UK sl.
1981 — GILL a customer, esp. a gullible one → US circus & carnival sl.
1982 — BE-BACK a potential customer who say he or she will return but clearly has no intention of doing so → US sl., derogatory
1988 — WOOD DUCK a naive customer who is easily duped, fooled, or conned → Aust. sl. (Bk.)
1990 — BILLY (BUNTER) a customer, a punter; an ordinary member of the public → UK rhyming sl.
1994 — ULTRA a customer who requires the best, most upscale version of everything they buy → US sales persons’ sl. (Bk.)
1995 — WALK-IN a customer who walks in off the street → Amer. sl. (Bk.)
2002 — HILLMAN (HUNTER) a customer → rhyming sl. for ‘punter’
2002 — WILHEMINA a female customer, esp. of discreet or illegal services → UK sl.
2004 — HEATSEEKER a customer who can be relief upon to always buy the latest version of an existing product → IBM sl. (Bk.)
NOUNS, PERSON – OTHER
1999 — SPRUIKER a person who shouts to attract customers → Aust. sl. (Bk.)
VERBS
1935 — TAB of a customer: to give much trouble → drapery trades usage
Lexicophilia 