A person of female gender with flat chests, or often called undeveloped chests (although they don't grow any more). Can usually be tsunderes or lolis (sometimes with exceptions)
Everything was extremely perfect until i saw a boy in my girls only party. Actually, I mistook her for a boy and kicked her out out of the party, all because she is a beta-chester.
Your disguise is perfect, Kaito Kid, but you made one deadly mistake,... assumminq Sera was a girl just because other tomboy attitude and she being a beta-chester.
Your disguise is perfect, Kaito Kid, but you made one deadly mistake,... assumminq Sera was a girl just because other tomboy attitude and she being a beta-chester.
by secretgeiorbi September 3, 2021
Get the beta-chestermug. Beta, means a strong powerfull male archetype of a human being who is usually silent and deadly by definition and draws power from the sun and moon.
Person1:"Oh man that guy over there is totally a beta" Person2:yeah he is, I'd say he is very strong and silent.
by Koa Mana Blumberg-T...I win Tr October 13, 2025
Get the Betamug. birth control for women
by kinesmanda August 27, 2022
Get the beta soy boymug. 
people who are beta cucks and do things like think they're better than everyone else but also want to be oppressed even though all they have going for them is being gay
Person A: isn't winston such a beta cuck?
Person B: yeah, his boyfriend johnovan is an even BIGGER beta cuck. Didn't you hear? he made his friend steal condoms so they could have protected sex. Fucking beta cucks
Person B: yeah, his boyfriend johnovan is an even BIGGER beta cuck. Didn't you hear? he made his friend steal condoms so they could have protected sex. Fucking beta cucks
by deejaytheweejay October 5, 2025
Get the beta cuckmug. The best frat ever. Which isn't saying much. All the guys are mid, yet the atmosphere is top tier. If you go to a beta party, you will feel like a ten simply because these men are desperate. Stay away from Topher.
by bingbong27 January 9, 2022
Get the beta theta pimug. 