lamebrain

don't be such a lamebrain when making decisions.

he called me a lamebrain for forgetting the meeting.

sometimes i feel like a lamebrain for not understanding the instructions.

she laughed at his lamebrain comments during the discussion.

it was a lamebrain idea to skip the important meeting.

don't be a lamebrain; think before you act.

his lamebrain excuse for being late didn't convince anyone.

everyone makes mistakes, but don't be a lamebrain about it.

she realized it was a lamebrain move to argue with her boss.

he often acts like a lamebrain when he's nervous.