Former NFL football coach “Bum” Phillips passed away at age 90 Friday.

SB Nation reports that Phillips was a head coach for the NFL for 11 seasons, starting his career with the Houston Oilers (now the Tennessee Titans) and then spending five seasons with the New Orleans Saints. One of the best defensive coaches of his time, he lead the Oilers to to two AFC Championship games and brought the Saints to their second-ever non-losing season in 1983.

Oail Andrew Phillips Jr. was nicknamed “Bum” by his sister, who, according to Bum Phillips Charities, stuttered and couldn't say the word “brother.” It was a nickname that stuck, reports CNN, and it fit the man through his impassive sayings, referred to as “bumisms.” One famous bumism was "There's two kinds of coaches, them that's fired and them that's gonna be fired."

Phillips is also known for his trademark white cowboy hat. He wore it all the time, except when indoors or playing in domes, since he said his mother always told him to take it off when indoors.

When he resigned from coaching in 1985, he became a rancher in Goliad, Texas. "I still love football," he said at the time. "You can't do something for 50 years and not love it, but I love it where it's at, and I love where I'm at" -- his ranch in Goliad, Texas.

Phillips died in Goliad after battling a respiratory illness. Phillips' son, Wade Phillips, who is defensive coordinator for the Houston Texans, took to Twitter to express how much his dad will be missed.

Image courtesy of Wikimedia Commons