nakey bastard
someone who loves being naked so much they probably think clothes are a curse; they don’t care if you throw a fit about it.
'He's a nakey bastard. He walked into the office wearing only socks and a hat.'
'My dad is a nakey bastard. He went for a run in the park with no clothes on.'
'She’s a nakey bastard. I saw her walking down the street with nothing on except a bra.'