Green’s Dictionary of Slang

Bambi effect n.

[the parting of the youthful Bambi and his erstwhile pal Thumper in the Disney film Bambi (1942)]

(gay) the turning of a young (otherwise homosexual) man’s fancy to (heterosexual) love.

Q Public June 12/1: Nick and Zach had a hard time picking their jaws up from the floor. The ‘Bambi’ effect had not yet worn off [...] these two [straight men] were given the full treatment, including blatant stares, the surreptitious feel [...].