Gaify
Making someone so gay they start singing show tunes and wearing socks with bells on them.
My brother got gaified by his gym teacher. Now he does yoga and talks about love.
My mom got gaified by a guy who brought a unicorn to her birthday. Now she thinks unicorns are her soulmates.
My neighbor got gaified by a guy who wears sunglasses at night. Now he walks around singing disco songs.