The Mexican dish of “pico de gallo” is not a metric prefix, but there have been jokes. “I got a burrito at lunch just to quip that with the amount of salsa they put on, they should call it ‘femto de gallo’” was posted on Twitter on March 11, 2010. “Mili de gallo, micro de gallo, nano de gallo, pico de gallo, femto de gallo…” was posted on Twitter on December 1, 2012.
 
A riddle was posted on Reddit—Dad Jokes on January 12, 2018:
 
Q: What’s larger than a pico de gallo?
A: A kilo de gallo.
   
       
Wikipedia: Pico de gallo
In Mexican cuisine, pico de gallo (Spanish pronunciation: [ˈpiko ðe ˈɣaʎo], literally beak of rooster), also called salsa fresca, is made from chopped tomato, onion, cilantro, fresh serranos (jalapeños or habaneros are used as alternatives), salt, and lime juice. Other ingredients, such as shrimp, or avocado, are also sometimes added.
         
Wikipedia: Metric prefix
yotta Y 10008
zetta Z 10007
exa E 10006
peta P 10005
tera T 10004
giga G 10003
mega M 10002
kilo k 10001
hecto h 10002/3
deca da 10001/3
            10000
deci d 1000−1/3
centi c 1000−2/3
milli m 1000−1 10−3
micro µ 1000−2 10−6
nano n 1000−3 10−9
pico p 1000−4 10−12
femto f 1000−5 10−15
atto a 1000−6 10−18
zepto z 1000−7 10−21
yocto y 1000−8
 
Twitter
Nate Cantor‏
@natecantor
I got a burrito at lunch just to quip that with the amount of salsa they put on, they should call it “femto de gallo”. #jokesnotforbrian
1:50 PM - 11 Mar 2010
   
Twitter
pobody’s lesser nerfect‏
@nategri
mili de gallo, micro de gallo, nano de gallo, pico de gallo, femto de gallo… .. “little gallos have lesser gallos and so on ad inifinitum”
11:06 PM - 1 Dec 2012
   
Twitter   
Matt‏
@workahol
So hungry for Mexican food, I could probably eat a plate of Nano de Gallo.
12:03 PM - 10 Jul 2013
 
Twitter
Pun On My Face‏
@PunOnMyFace
What’s pico de gallo? 1000 femto de gallo
4:08 PM - 14 Nov 2013
   
Twitter
Topher Howard‏
@topherocity
Pico de gallo. Small than nano de gallo but way bigger than femto de gallo.
11:36 AM - 13 Aug 2014
   
Twitter
&roo‏
@broothie
Q: what do you call it when you order a small pico de gallo?
A: femto de gallo
http://instantrimshot.com
6:45 PM - 28 Oct 2015 from Amherst, NY
 
Twitter
Katie Tiedrich‏
@katietiedrich
femto de gallo
10:29 PM - 29 Apr 2016
 
Twitter
BrianEnigma‏
@BrianEnigma
So there’s pico de gallo. That’s gallo✖️10⁻¹² Does that also mean there’s nano de gallo? Femto de gallo? Kilo de gallo? Peta de gallo?
10:17 PM - 18 Apr 2017
     
Twitter
David Davidson‏
@rockskimmer
pico de gallo
nano de gallo
micro de gallo
7:07 PM - 7 Aug 2017
 
Twitter
2Jayz‏
@stockaflocka23
What if I want more than a pico of gallo? Like a micro de gallo or a nano de gallo? Or even less with a femto or atto de gallo?
6:56 PM - 17 Dec 2017
 
Reddit—Dad Jokes
What’s larger than a pico de gallo? (self.dadjokes)
submitted January 12, 2018 by Prae_Cedric
A kilo de gallo.
 
Twitter
Theric Jepson‏
@thmazing
I enjoy pico de gallo so much, when I’m at the restaurant, I request kilo de gallo!
Anybody? anybody?
9:26 PM - 12 Jan 2018