Top definition
A verb when you get to involved and over think a relationship to the point where you develop a subconscious feeling towards that person where you think they are no longer into you so you start to act weird and give off weird vibes to the point where the other person starts to dislike you
Yeah he totally billyed with her. To billy
by LickMyBenji January 27, 2016
Get the mug
Get a to billy mug for your coworker Callisto.