The "Girl Crush Crawdad Top" is typically a vintage or vintage-style halter top made by the brand Girl Crush (circa late 90s/early 2000s) featuring a printed graphic of a crawdad (or multiple crawdads), often paired with floral motifs, flames, or rhinestones.

If you are searching for this unicorn, beware of fakes and reprints. The authentic vintage Girl Crush top has specific hallmarks:

It is surprisingly flattering. It hugs the curves without suffocating you, and the neckline is low enough to be flirty but high enough to wear a real bra.

You might be asking: Why would anyone wear a crustacean on their chest?