Either the registration or the owner.
Yes, these were done on purpose and not because the French don’t know the English equivalent. 
SEX
LOV(e)
KIS(s)
We had a customer when I was in Fresno that his King Air wqas registred as WTF Corporation. 
Danny
Phil Knight’s (founder of Nike) Gulfstream V is N1KE
IndyCar’s CRJ-700 is N1RL (the league was founded as th IRL) (this aircraft is also used for Hulman & Co. business).
I’ve stood on N1KE. Phills Golf clubs where in the back 8)
N155AN
Spells Nissan and is Nissan’s G550.
not terribly funny, but along the same lines as some of the witty reg. posts, the State of Illinois has a few King Air s all ending in 1LL. I believe on is 911LL and their ATC callsign is 91 Illinois
For state business, my governor uses King Air N10EC.
Betcha it’s Tennessee! That’s a good reg!
N10SE works too !
registry.faa.gov/aircraftinquiry … ertxt=10SE
And this somehow got past the UK’s CAA 
abpic.co.uk/photo/1249909/
I think Mississippi State U used to have a king air registered as N350MS
IIRC, all of New Jersey’s aircraft have N numbers that end in NJ. For a certainty all of the rotary aircraft do, especially our iconic Sikorsky S-76 med-evacs.
Once upon a time California had a Citation, N31ST. Of course they used November thirty first on the radio.
I hate hawkers but this one sat around work for a long time as a repo i believe. nice to see its getting some use once again.
N-180NE
Kinda looks like IBONE lol
One day i seen a mouse scurrying down runway 26.
flightaware.com/photos/aircraft/MOUSE
and a Canadian registered Gulfstream 5 CGLFV.
N166ER
Yeah that one’s based here at KSEE. It’s blocked, but is quite active.
Another funny owner at KSEE: flightaware.com/resources/registration/N164S
Although I’ll admit “Pissed Away” is pretty good…
Note to Admin: The above N164S reg page has some missing data. Is this a bug or an FAA flub? It’s a PC12.
D-ICKS!
A/C is 1985 Dornier Seastar
Oh, and JHEM, most of NJ’s Civil Air Patrol planes end with NJ