tamecore

A word used to describe the epitome, or "core", of tameness. Usually used to describe someone who is boring or unadventurous.

"Lamecore" is an alternative, meaning something which is the epitome of lameness, or lametitude.

"Why isn't John coming out tonight?"
"Cos he's tamecore, that's why!"

"Hey, we're going bungee jumping, you coming with us?"
"Nah, I'm feeling a bit too tamecore"