to be gay for something or someone: to have a strong but somewhat subtle interest in something. the interest becomes clear in rare and quick remarks that should be taken as a hint.
like in Family guy where Stewie is both gay, but also "gay for" Brian, in that it is piece by piece insinuated that he has a sexual(not neccesarily) interest in Brian throughout the series
bro 1: aight imma go to bed bro 2: aight see you. wait i almost forgot
*intense fucking between bro 1 and bro 2*
bro 3: *watching from a distance* bruh thats gay.
i need to get in on that.
Chanted when someone or certain actions are gay, usually used by queer people on tumblr and twitter. Originated from an edited screenshot of a Yu-Gi-Oh character whispering "I can still hear his voice..." with another Yu-Gi-Oh character behind him chanting "gay gay homosexual gay"
Friend 1: Wow Jean and Lisa canonically live together and cook dinner for each other
Friend 2: gay gay homosexual gay