dive n.1(UK Und.)
1. [early 17C–19C] (also dives) a pickpocket; an act of pickpocketing [dive v. (1)].
2. [late 18C–early 19C] a thief who stands outside a house or shop, inside which is a small boy who throws out goods that have been stolen [? he dives to catch the falling goods/the goods ‘dive’ from the window].
3. [1910s+] (orig. US, also diveroo) the voluntary losing of a fight by a boxer, presumably at the behest of a criminal bettor [he ‘dives’ to the canvas].
1. [1910s+] (also high-dive) in boxing, or any competition, for a fighter deliberately to lose a fight (cf. go in the tank under tank n.1 ).
2. (Aus.) to plead guilty.
3. [1950s] to faint.
4. [1980s+] to fail.
[1900s] to make a bet.
SE in slang uses
[late 19C+] to have sexual intercourse.