Build-A-Bear

A (playful) term/phrase that refers to FTM or trans-masculine individuals who begin taking testosterone (gender affirming hormones) AND start an intensive work-out routine at the same time; the joke being that the person in question is “building” themselves into a “bear” (bear as in a hairy and/or large gay man.)

Person 1: “Did I tell you I ran into Ed at the gym yesterday? He looked like he was hitting the weights really hard.”
Person 2: “Good for him, if I were just starting on T I’d be excited to bulk up too!”
Person 1: “LOL yeah, talk about Build-A-Bear tho.”