For describing bad, worthless, annoying, or otherwiseundesirable husbands. A "Fucking Husband" for when you just can't say those words. Much like 'fugly'.
A "fusband" is a colloquial or slang term combining "faux" (fake/false) and "husband," referring to a male partner with whom someone lives or acts as if married to, without being legally wed.
A husband who just won't let his wife be. Hence, he bickers and bitches and fusses around all the timeleading to increased altercations and / or noisy arguments.
Boss: That's weird, why would you want to do that ?
Mary: Because my stupid fussband back home would spoil my day if he had me to his command so early and I really need to get some good peace of mind to rest!