dipstick
🇺🇸
/ˈdɪpstɪk/
🇬🇧
/ˈdɪpstɪk/
A tool used to check the level of liquid in a vehicle's engine, like oil or fuel.
I used the dipstick to make sure there was enough oil in the car engine.
A person who is not very smart or makes poor decisions.
Don't be a dipstick, think before you act.