This is for the ladies. Tell your parter you are not on Birth Control so he must pull out, but you really are on BC. Then till him you only do it missionary. Right as he's about to pull out wrap your legs around him and say something fucked up like " I want you to be my baby's daddy"

Guy: Oh baby Ima pull out......take your legs off me.
Girl: BE MY BABY'S DADDY

Guy: Dude, had a pregnancy scare. she said she wasn't on BC and wrapped her legs around me like a Boa Constrictor as I was about to cum.

Boa Constrictor by BryNSanity, Migzz April 28, 2010

BOA constrictor

A bank that nickels and dimes its customers and finds every way they can do get money out of them, especially the poor.

I am planning to get my money out of the BOA constrictor fast and put it in a credit union as soon as possible before they take it.

BOA constrictor by Occupy Wall Street November 16, 2011

boa constrictor

when a man takes his penis and wraps it around the base of the scrotum,protruding the testicles, showing similarities to a boa constricting its prey.

A. yo bro check out this boa constrictor!
B. eww gross

boa constrictor by tmfrb September 16, 2009

Boa constrictor

Squeezing a friend until he or she can no longer breathe

How was last night?
Sucked. Josh hit me with a boa constrictor.

Boa constrictor by Jleebootyhole January 24, 2015

Boa Constrictor

A woman, who, during fellatio, unhinges her jaw, in order to take in an abnormally large male member.

Last night, that Boa Constrictor had to ice her jaw after we finished.

Boa Constrictor by NoPseudonym February 24, 2009

Boa Constrictor

When a male gets a visible erection while flirting with a female, and it is noticeable by gawked spectators.

He had a Boa Constrictor while flirting with the chick in the corner.

Boa Constrictor by Joe's tongue October 17, 2017