A betabux', for 'beta bucks', or beta male provider, is a man in a relationship (or marriage) with a femoid, even though the femoid is not particularly sexually attracted to him and instead uses him as an ATM machine. This phenomenon is born from females' dual-mating strategy.
Men who betabux often missed out on sex during their formative years, and as a result often are desperate, foolish and gullible when it comes to dealing with femoids. A betabux often compensates for his poor genes and looks, by acquiring wealth to attract a post-prime, golddigging slut who rode the cock carousel during her prime years.
The archaetypal beta provider
Timothy is the archaetypal beta provider. Timothy is a 35 year old engineer with a good career. Femoids find Timothy to be unattractive, and he was a kissless virgin until he met Jenny, who he married shortly after their relationship started. Jenny is a 36 year old single mother who already had 3 kids. Jenny used to be attractive in her teenage years and early 20s, but is no longer due to poor diet, and excessive partying and drinking during her prime years. Jenny used to spend lots of time getting fucked by dominant Chads, but none of them were willing to settle down with her. Jenny realized she needed to lower her standards to secure a source of income, even if that meant settling for a less attractive man. Jenny now relies on Timothy's income to maintain her lifestyle and provide for her kids. This is why she married Timothy, who is a reliable beta provider. Jenny has never told Timothy the raw truth about why she chose Timothy to settle down with. Instead, she clouds Timothy's judgement with occasional romantic gestures, as this makes it easier to keep Timothy's self-sabotaging behavior ongoing. Jenny has zero intentions of ever having children with Timothy, because she deems his genes to be inferior for her offspring.