oilchecker 

A euphemism for a guy who likes anal sex

He was known by all his close buddies to be an avid oilchecker.

oilchecker by Dr Bunnygirl January 30, 2019

Oilchester City 

A football club created in 2008 and is based in the UAE. They have very rich owners and have used their oil money to succeed

Oilchester City are looking to buy Messi they are willing to give him 1 million a week to get him to join

Oilchester City by Amazing 1356 June 1, 2021

oilcheckup 

OilCheckUp test kits with specialized test media for any fluid providing visual and comparative results of amount of contaminants, wear metals, soot, sludge, change in viscosity, depletion of oil additives, and indication of water, fuel, or glycol dilutions

OilCheckUp for engine oil, transmission, brake, steering, differential, hydraulic, gear fluids

oilcheckup by oilcheckup June 28, 2011