“Foul balls” can mean one thing in baseball, but can mean another thing to men. A joke has been cited in print since at least 1972:
   
“Did you hear about the new man’s deodorant called ‘Umpire’? It’s for foul balls.”
 
The joke has been printed on several images.
   
         
Google Books
A Joke and Its Tellers:
A Study of the Functional Variation of a Folklore Item at the Psychological Level, Volume 2
By Thomas A. Burns
Indiana University, Ph.D. thesis
1972
Pg. U80:
Did you hear about the new man’s deodorant called “Umpire?” It’s for foul balls.
 
Google Groups: rec.humor
jokes
Kurt Bauer
12/10/92
Some of these jokes may be offensive to some, but I found all of them humorous.
Q:Did you hear about the new deodorant called umpire?
A:It’s for foul balls
 
Google Groups: alt.jokes
Hear about the new deodorant called “Umpire?”
Clyde Bassman
2/4/01
Hear about the new deodorant called “Umpire?”
It’s for foul balls.
     
Google Groups: alt.tasteless.jokes
Q: Did you hear about the new deodorant called Umpire?
ur_droll
6/14/02
A: It’s for foul balls.
     
Google Groups: alt.humor.puns
Adult Puns of the Weak 07-15-04
Stan Kegel
7/15/04
(...)
Did you hear about the new deodorant called Umpire?
It’s for foul balls. (Miss Misty)
 
Twitter
Judith Ann‏
@prissy121
Did you hear about the new deodorant called Umpire?
It’s for foul balls
8:23 PM - 15 Sep 2009
 
Twitter
Scott Feinberg‏
@ScottFeinberg
There’s a new male deodorant on the market: “Umpire,” for foul balls.
7:18 PM - 7 Oct 2009
 
Twitter
Surendra Tapuriah‏
@Bobbycal
“Did you hear about the new deodorant for men called - Umpire? It’s for foul balls.”
2:16 AM - 21 Mar 2010
     
Google Books
Jokes of the 1970s & 1980s
By Mozelle Barr Martin
Lulu Press (Lulu.com)
2017
Pg. ?:
Did you hear about the new deodorant called umpire? It’s for foul balls.
 
Reddit—Oneliners
I’m making a male deodorant called Umpire for foul balls.
submitted January 19, 2018 by Kas585