A male who becomes desired by females once they have declined in looks or want to settle down. Generally these males will provide for the female financially while getting very little in return. Females will abuse their betabux and don't really love them.
"Did you hear about Stacy? She married that nerd we picked on in high school."

"Why?"

"She wanted to settle down and not work anymore. He became a betabux"
by accoloot December 30, 2016
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