Lighting comes in bolts, the 'Bolts' are also a common nickname for the Chargers
Chief Zee is not an official mascot, but a dedicated fan who is the de facto mascot of the Redskins. The fan's real name is Zema Williams.
T.D. is short for touchdown, and is named as the result of a fan contest
T-Rac is a raccoon, and the raccoon is the state animal of Tennessee. 'T' could stand for Tennessee or Titan, 'Rac' stands for raccoon.
'Pat' forms the first part of the word 'Patriot'
Sourdough bread was so prevalent during the California Gold Rush that Sourdough became a nickname for gold prospectors. Sourdough Sam is an alliterative characterization of a '49er,' one who came to California in 1849 for the gold rush
Edgar, Allan, and Poe
Named after Baltimore Poet Edgar Allan Poe, whose poem 'The Raven' is the basis for the team's name
'Toro' is a cry used in bullfighting. The Texans associate themselves with bulls in many ways. For instance, their mascot and logo are both a bull.
Cardinals are red birds, and the team was originally named for the color cardinal, a shade of red
No special meaning other than a stereotyping of a cowboy
CB, TD, Chomps, and Trapper
Four 'dawgs,' a common nickname for the Browns. Chomps and Trapper are dog names, TD is short for touchdown, CB is short for Cleveland Browns
Eagles swoop down to catch their prey
The Bills play in the city of Buffalo, 'Billy' is a play on the name 'Bills'
Named after gumbo, a very popular dish in Southern Louisiana
The Steelers are named after Pittsburgh's famous steel industry, steel is often made into steel beams
A charictarization of a pirate captain, since Buccaneer is a nickname for a pirate
'Viktor' is a traditional Scandanavian name which is also alliterative with 'viking'
Named for Denver's nickname, the 'Mile High City'
Named after a popular Bengals chant, beginning with and often abbreviated 'Who Dey'
Staley Da Bear
Named after A.E. Staley, the founder of the Chicago Bears, originally the Decatur Staleys
'Roar' is an onomatopoeic word used to describe the noise that lions make
Blitz refers to a common defensive tactic in football, but the name is not specific to the Seahawks
'Purr' is an onomatopoeic word used to describe the noise that panthers make
'K.C.' is short for Kansas City, 'Wolf' honors the 'Wolfpack,' a nickname for a noted group of rabid fans
An alliterative name incorporating the name of the team