1. in commercial senses.
(a) [late 19C] (US) a salesman, often defined by occupation.
(b) [1900s-60s] (US tramp) the foreman on a construction site.
(c) [1900s] (US Und.) a bank teller; a cashier.
(d) [1910s] (Aus.) an outstanding example.
2. [1900s–40s] a young woman, esp. a flirt or a prostitute; see also square pusher
3. in Und. uses.
(a) [1900s] (Aus.) a petty thief or confidence trickster.
(b) [1920s+] (drugs, also pusherman) one who sells drugs; usu. in his ‘small-time’ or ‘retail’ role as opposed to the wholesale dealer n. (2)
(c) [1930s+] (US Und.) a distributor of counterfeit money.
(d) [1950s] (US gay) a man who runs a string of homosexual male prostitutes.
4. [1950s+] (Aus.) a pushchair.
5. [1980s+] (drugs) as an implement.
(a) a thin stick, typically a chopstick, used to pack a cocaine pipe.
(b) a metal hanger or umbrella rod used to scrape residue in crack cocaine stems.
1. [late 19C–1930s] a young woman, usu. respectable; thus square-pushing, courting.
2. [1920s] a boyfriend.