short for BOUTIQUE and is an online shop on social networking websites (e.g. Facebook, Myspace)normally created by those without actual business

It may also be called (enter name)'s Closet. The majority of btq owners are teenagers who wish to earn money from selling/trading their clothing as merchandise.
Girl 1: "I bought a floral romper from Lover's btq on Facebook last night!"
Girl 2: "OH MY GOSH, really? I wanted that too!"
by theladyinblue January 3, 2012
A variation on BTW
It is used a lot by anyone who is a twibb
by Twibbnosity January 10, 2010
plain and simple
its means

Big Tall Queer
Yo BTQ, what's up man?
or
that kid is a btq, don't go near him
by `Lurch August 5, 2006
Part of LGBTQ+ (Lesbian, Gay, Bisexual, Transgender, Queer/Questioning), but specifically are gay.
I am L(G)BTQ+
by slweeb August 2, 2021