managing to pull something out of your ass that no one thought you could.
being awful at something for a majority of the time that you are doing it and then somehow pulling yourself together in the last moments to secure victory.
"How the hell did he win that game? "
"He's Tim Tebow coach"
1) to drop to one's knee, regardless of surroundings, bow one's head and pray to the Almighty that somehow you won't fuck up whatever it is you are doing
2) to randomly drop to one's knee and bow one's head - in the fashion of "professional" football player and "quarterback" Tim Tebow - in public settings (see also: planking & owling)
2) "Dude, is that guy Tebowing in line for the ATM?"