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)
Jimmy John’s Learjet 45 N15UB (SUB) : flightaware.com/resources/registration/N15UB
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
http://flightaware.com/resources/registration/N800BS seen a few times at BJC
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