Your best friends penis
"Dude put a towel on! I just saw your Broaconstrictor!"
The word Broaconstrictor or any variation of the spelling means.
Any person who takes your close friend or "Bro" away from you by means of consuming his time with them instead of you. Generally this person is a love interest, but it could also be family or his other friends.
The term Broconstricted , or any variation spelling means that your friend is busy with the Broaconstrictor.
Christian: Jessica has plans with Mikey all the time we never get to see him anymore
Jake: Yeah man she's a Broaconstrictor
Christian: Hey is Mikey coming out tonight ?
Jake: Nope , he's Broaconstricted, as usual.