A person who’s clumsy, heavy-handed, or totally tactless, especially when the situation needs a gentle touch. They barge in and smash the vibe, knocking over feelings, plans, and basic social cues like it’s nothing. Classic line for that mate who thinks “being direct” is a personality.
"We sent Dave to smooth things over with the neighbours and he rocked up in muddy boots, calling their garden a state. Proper bull in a china shop, now we’re all in the doghouse"