"I dropped out of communism class because of lousy…

“I dropped out of communism class because of lousy Marx” is a popular pun on Twitter. The joke has been cited in print since at least 2007 and is of unknown authorship.

PurseForum
Poovey
MAY 19, 2007, 11:41PM
Some more:
. I dropped out of my communism class because of lousy Marx.

Google Groups: Humor Club
-:VERY PUNNY :-
R.K.
7/4/07
-: VERY PUNNY :-
> I dropped out of my communism class because of lousy Marx !

Twitter
Chris London
‏@chris_london
dropped out of communism class because of lousy Marx.
12:46 PM - 15 Feb 2009

Twitter
Aarón Shelby Baca
‏@ashelbybaca
I dropped out of my communism class because of lousy Marx. #punday
7:07 PM - 29 Mar 2009

Google Books
All Kinds of Humor:
Jokes, Quips, and Fun Stuff for Many Occasions. Over Forty Categories. Book 2
By Frank Verano
Xlibris Corporation (Xlibris.com)
2012
Pg. 207:
I dropped out of Communism class because oflousy Marx.

OregonLive
Friday’s Edge: Get your fill of puns here
Print Special to The Oregonian By Special to The Oregonian
on November 21, 2012 at 4:57 PM, updated November 21, 2012 at 4:59 PM
(...)
I dropped out of communism class because of lousy Marx.

Google Books
Chuckle, Giggle, Snort!:
Quips Collected By Karen Money Williams
By Karen Money Williams
Lulu Press, Inc. (Lulu.com)
2014
Pg. ?:
I dropped out of communism class because of lousy Marx.