I use it to get out of doing shit I don't want to do.
Like when my buddy says "can you come over and help me re-tile my kitchen backsplash", and I'll say "let me check with the boss", which always ends in a "no", thus giving me a chickenshit way out of doing something I don't want to do, all whilst blaming my wife.
My friends do this to me as well, and it's become our running gag.
"Hey Jim, can you come over and spend 6 hours in my backyard helping me assemble this shed kit I got at Home Depot?". Jim says, "I don't know man, let me ask the boss. I think she has a "honey-do" list already."
"Hey Fred, I need you to come help me as assistant coach for my kid's baseball team." Fred says, "Geez man, I don't know, let me ask the boss. I think she has me penciled in for driving little Sally to ballet on Saturday mornings."
"Hey Biff, I need you to host poker night at your house." Biff says, "Wow, let's see how the boss feels about that. I think the cigar smoke irritates her, and she said I'm cut off if I pull a stunt like that again."
It's like a guilt-free way of getting out of stuff you don't like. Of course, when your buddies catch on, they either do the same in a cool form of revenge, or you get ostracized as a punk. My friends, thankfully, are now fully engaged in the whole "boss" thing, and if anything, it's become a running meme on the block as we talk about our wives. The wives, I believe, still haven't caught on. They will though, and we'll have to shake things up with a new way to poke fun at them. Because that's all we're doing...poking fun at a wife. No man worth his shit actually thinks his wife is the boss.
You unmarried guys will learn. It has it's role. It's not a compound exercise...it's an assistance "feel" lift. When used in the right place, it can carve out details that are important in the process of judging your success as a man.