Green’s Dictionary of Slang

come over v.¹

to trick, to cheat; to get the better of.

1609		Dekker Gul’s Horne-Booke C1: Care not for those coorse painted cloath rimes, made by ye University of Salerne, that come over you, with... sweete candied councell.
1785		Grose Classical Dict. of the Vulgar Tongue.
1794		Gent.’s Mag. 1085: I lately came over him for a good round sum [F&H].
1821		N.-Y. Eve. Post 17 Oct. 2/6: The counterfeit money and all they can prove, (said he to the marshall on going into court) I don’t care for, if they don’t come over me with some yankee trick.
1823		Age (London) 29 May 21/2: [The journal] might overcome the rogues, who seemed to take every means to ‘come over’ us.
1836		A. Thornton Don Juan in London II 53: This ingenious youth he soon found was coming over his dear papa for a loan; pleading bad debts.
1848		G.W.M. Reynolds Mysteries of London II (2nd series) 31: That there sniggering feller come over us all in sich a vay vid his blessed insinivations, that we all thought him a perfect saint.
1848		Bell’s Life in Sydney 7 Oct. 3/3: Don’t think to come over us with that blarney.
1869		Sportsman (London) 21 Oct. 2/1: Notes on News [...] [T]he epistle was believed to be sent firm of hatters [...] to the secretary a poultry show [...] to induce him to ‘come over’ the judge to award the writers a prize.
1908		‘Old Sleuth’ Dock Rats of N.Y. (2006) 95: The countryman looked the master of the ‘Nancy’ all over, winking knowingly, and said: ‘You cannot come that over me!’ ‘Come what over you?’ ‘Oh, I’m no fool! I know how you Yorkers work the trains.’.
1927		‘Max Brand’ Pleasant Jim 109: ‘Aw, hell, Sally,’ said the yegg, ‘don’t come that over me.’.

SE in slang uses

In phrases

come over on a whelk-stall (v.) [? the flashy dress preferred by whelk-sellers]

(costermonger) to be very flashily dressed.

1909

J. Ware Passing Eng. of the Victorian Era 87/1: Come over on a Welk (or Wilk) Stall (Coster satire). E.g., ‘Where did yer dad come from? Come over on a whilk-stall?’ This may be a folk-satire upon ‘Coming over with the Conqueror,’ or the ‘whelk’ may have that broad reference which was applicable to ‘He’s got ’em on’ – when first this satirically eulogistic phrase came out.