Green’s Dictionary of Slang

passer n.

one who passes counterfeit money.

1889		Marion Star (OH) 6 Aug. 2/4: He supplied the stuff to thirteen passers.
1931		Irwin Amer. Tramp and Und. Sl. 141: Passer.–One who passes or ‘shoves’ counterfeit money.
1948		Indianapolis Star 19 Jan. 32/8: The maker of bogus money is seldom the passer.
1953		‘John Eagle’ Hoodlums (2021) 58: The Treasury men always clamped at the pickup. They had no need for the passers.
1964		Progress-Index (Petersburg, VA) 6 Sept. 14/7: The normal procedure is for the passer to take one counterfeit note from the cache [...] and make a small puchase.
1985		N. Pileggi Wiseguy (2001) 80: Jimmy had been used as a ‘passer’.

SE in slang uses

In phrases

take a passer (v.)

(US) to pass out, to faint.

1979

B. Gutcheon New Girls (1982) 234: My God, she’s gonna take a passer.