In Portugal this word (which translates to Azeite) is used to describe a rare kind of Fuckboy potentially only found in this country.
Imagine a new race of Fuckboy created by mixing the actual Universal fuckboy with the lack of information found in Portugal's villages.
The result is a person finding about a trend that went out of fashion 5 years ago and wearing it proudly, spreading it with his friends, plus adding Kizomba in the mix, thus creating a legion of Olive Oil(ers) (Azeiteiros) who leave trails of olive oil in their wake.
"Miguel is such an Azeiteiro. Look at all that olive oil."
"You can literally see the olive oil overflowing that room."
"José slipped in Julio's olive oil last week and broke his leg. I'm afraid he'll never walk again."
In Portugal a Sheila is a species of whore/harlot who attracts fuckboys and leaves a trail of olive oil in her wake.
You are able to identify them by their horrible wardrobe choices, the distanced sound of Kizomba music and also the constant need to take selfies with a smartphone and/or camera (preferably with the flash turned on during daylight for extra "sweg" points.
"Julia is a fine prime specimen of what we call a Sheila" - Said by a tourist guide
"Be careful bro!! Don't slip on those sheila's olive oil!!"
"Look at those sheilas ruining classic quotes with their Instagram Whoredom!"