Leo

Origin

Shortening.

Full definition of leo

Noun

1. (informal) A leotard.
• 2011, Jennifer Kronenberg, So, You Want To Be a Ballet Dancer?To this day, I still try to steer clear of wearing a black leo and pink tights together ...
• 2016, Shawn Johnson, The Flip Side (page 66)Now go grab your favorite leotard and makeup bag. I'll run you over there.” ... I rush to apply eye makeup that also matches my leo.----