a synonym for the NFL Team, the Tennessee Titans. This is due to the fact that their logo bears an uncanny resemblance to a flaming thumbtack. Brought to the mainstream by Gregg Easterbrook, of Tuesday Morning Quarterback fame.
"The Flaming Thumbtacks are gonna go all the way this year with Vince Young leading the way!"
A hardo is a person who tries extremely hard at everything. Most times a hardo will try very hard at things that do not require excessive effort. For example, sports practices, gym class, etc.
Wow did you see Jack at practice today? What a hardo!