You don't. Hair will grow back as long as the follicles are active.
It takes a while to get there so it will take a while to get back... But why would you shave your underarm hair
its natural to have hair on your neck even girls have it but if u want to shave it u can it will look a bit odd when it is growing back but its up to you
shave it
Yes, shave.
shave it
plucking it works. the first time is uncoferatable but after that its easy
Shave.
Just shave it off.
why the heck do you want some guy to shave his legs? It's part of growing up for a guy therefore it's pointless. Anyway, It'll just grow back so theres no point. And it is manly. Try getting him to shave his armpits.
Shave with a rusty pocket knife.
Without consent, it is mean to shave anyone's anything.
no you can't , but yo can shave it or clean or get it lazered