“Petroleum jelly implies the existence of petroleum peanut butter”

Petroleum jelly (such as Vaseline) is a popular non-food product. There is no petroleum peanut butter, but there are jokes.
   
“Just wondering…Why is there no petroleum peanut butter?” was posted on Twitter by thewebwiz on October 25, 2011. “Slathered on the petroleum jelly, but I can’t find the petroleum peanut butter” was posted on Twitter by Let Her Perfect on January 23, 2013. “Many people don’t know of the company’s other fine product, Vaseline Petroleum Peanut Butter” was posted on Twitter by Michael McKean on September 9, 2017.
   
“the existence of petroleum jelly implies the existence of petroleum peanut butter” was posted on Twitter by daylon on January 11, 2022.
   
     
Wikipedia: Petroleum jelly
Petroleum jelly, petrolatum, white petrolatum, soft paraffin, or multi-hydrocarbon, CAS number 8009-03-8, is a semi-solid mixture of hydrocarbons (with carbon numbers mainly higher than 25), originally promoted as a topical ointment for its healing properties. The Vaseline brand is a well known American brand of petroleum jelly since 1870.
   
Twitter
thewebwiz
@thewebwiz
Just wondering…Why is there no petroleum peanut butter?
1:26 PM · Oct 25, 2011·TweetDeck
   
Twitter
Let Her Perfect
@nisscar
Slathered on the petroleum jelly, but I can’t find the petroleum peanut butter.
2:13 PM · Jan 23, 2013·Twitter Web Client
   
Twitter
LeShonda Stevens
@LeShondaStevens
Million dollar idea: Petroleum peanut butter
11:02 AM · Nov 26, 2013·Twitter for Android
     
Facebook
Jack Huber
January 1, 2014 at 1:02 PM ·
This isn’t so bad, but the petroleum peanut butter is just awful.
(Vaseline is shown on an image.—ed.)
 
Twitter
Jim’sJunkBox
@JamesIsaak2
Petroleum peanut butter and jelly.
#DisappointingProducts
7:38 PM · Jul 6, 2016 from Kentucky, USA·Twitter for iPhone
 
Twitter
Michael McKean
@MJMcKean
Many people don’t know of the company’s other fine product, Vaseline Petroleum Peanut Butter.
12:27 AM · Sep 9, 2017·Twitter Web Client
     
Twitter
Ken Johnson
@KJohnson4791
Replying to @MJMcKean
I often add a banana to my Vaseline Petroleum Peanut Butter sandwich.
12:31 AM · Sep 9, 2017·Twitter for iPhone
   
Twitter
CaptnBlair
@CB_Carlyle
Move over Petroleum Jelly, time for… Petroleum Peanut Butter? #slideinthesandwich #maskers #cashinginwithtjmiller
@nottjmiller @CashLevy
4:05 PM · Nov 30, 2018·Twitter Web Client
 
Twitter
daylon
@hansanki
the existence of petroleum jelly implies the existence of petroleum peanut butter
1:13 PM · Jan 11, 2022·Twitter Web App