Swaffler
Slang term used to define an individual whos actions are make it appear that they have switched (waffled) their sexual preferences. More often than not a man or woman who appears to their friends to have recently flipped their sexual preferences from heterosexual to homosexual.
"Man did you see jimbos shirt? yup pink, he's a swaffler"
"that hot chick was on bruce's dick all night and he didn't hit that? yup, hes a swaffler"
"that hot chick was on bruce's dick all night and he didn't hit that? yup, hes a swaffler"