Green’s Dictionary of Slang

himmer n.

[SE him; Rodgers, Queens’ Vernacular (1972), suggests an old joke, the punchline of which puns on SE hymn/him]

a male homosexual.

[US]B. Rodgers Queens’ Vernacular 107: himmer (dated, hetero sI, late ’50s) male homosexual. Based upon the joke of the parishioner who deposited a ten-spot into the Sunday church basket; urged by the pleased decon [sic] to select a hymn, the generous donator [sic] said, ‘I’ll take him, and him, and ...’.