MacTavish
MacTavish is when you go full-on reckless and have sex without a condom, like you're trying to prove you're the toughest guy in the room.
My cousin had sex with his cousin's girlfriend and said it was a 'MacTavish moment.'
My dad told me I was being a 'MacTavish' for not using a condom last night.
My friend texted me: 'Just had a MacTavish and now I'm regretting it.'