Oil Check Share definition Flag Something you tell Lady Erin Brant during a So Bad It's Good episode to totally break her into dying of laughter! Dave: Erin, it's called an Oil Check! (motioning sticking his thumb up a butt)Erin: (dying of laughter) No it's not! Is it?!!! Oil Check by RekEighty October 6, 2022 Get the Oil Check mug.