could anyone tell me what's the mean of the phases 'by curious '

[wyao840316]

I watch the cartoon 'south park' season11 episode 2 . and butter's father tell him just 'by curious', what is mean?? if it use to say some body is a gay???

[efexor]

Bicurious is a hetrosexual that is curios about gay sex. Curious in a way that he or she wants to give it a try with a person from the same gender.