Here's a few a/c:
DC-10..... Death Cruiser (-10)
Metro......Lawn Dart and/or San Antonio Sewer Pipe
Westwind....Bagel Bomber, Kosher Comet, Yom Kippur Clipper, Rabbi Rocket...etc, etc. (probably holds the crown for nicknames).
747...Whale
A-320...Chainsaw
T-37...Converter (converts fuel into noise)
F-105...Thud (sound it makes when it hits the ground)
B-52...Buff (Big, ugly, fat f...er)
A-7.....Sluf (Slow, little, ugly f...er)
F-4...Smoker
F-4U...Whistling Death (with credit to the Japs, who knew, for that one)
Bonanza....V-tailed Doctor Killer (or Lawyer Killer...your preference)
King Air/Beech 1900....High Altitude Road Block
C, E, and FRJs....Barbie, Jungle, and Dork Jet(s)
Tomahawk....Traumahawk
Jetstream...Jetscream
Cessna....um.. Mixmaster (he11, does anyone know it's real designator?).
and of course,
Citation....Nearjet and/or Slowtation (Why do they paint stripes on them?...because otherwise the other pilots keep mistaking them for clouds).
......a few domestic airlines...
AA.........Aryan Airlines (fitting the SkyNazi moniker), which naturally leads us to...
American Eagle....The Hitler Youth
SWA......The Cockroaches (cuz their 737s have the same color, body shape, and scurry around at high speed to old buildings)
DL....Deltard
......and defunct airlines...
TWA....Teeny Weeny Airlines
Midway....Midair
Northwest Orient....Northwest Disorient (now simply Northworst)
Piedmont..... Duhhhh Piedmont....which became "US Scare", now re-christened "US Scareways" (and I'm just keeping one step ahead by putting them in this group).
...and foreign airlines...
Egypt Air....Egypt Scare (but unlike "US Scare", this is no joke!)
Air France....Those Snail-and-horsemeat-eating Frog Bxstxrds (okay, so maybe that's not an "offical" unofficial name, but let's face it, we're all thinkin' it)