This phrase is used by guys to pick out attractive girls. If a guy says to you "You're on my team" it means he finds you physically attractive. A variation of this would be "She's on YOUR team" which means that a guy finds you so unattractive he puts you on his friends team.
Said by gay people in hopes that someone (usually unattractive or unpleasant) is not gay, to avoid bringing down the general reputation of gay men/ lesbians. Can also be "my team" to a non-queer audience, or "our team" to a queer audience.
The reverse works too "I hope she's on our team- Jodi's so hot."
"I *hope* he's not on my team, even though he keeps referring to his 'partner'. Joe is SO obnoxious."
To "man up" in a sense and perform a difficult task at any cost, anything from single handedly defeating an opposing team or finishing two large pizzas in one sitting. A team is not necessarily involved. May also refer to an awe inspiring act of epic proportion.
Person 1: "Wow, there's no more soda left so you're gonna have to finish your bottle of Captain straight."
Person 2: "I don't think I can do it dude!"
Person 1: "You have to, we gotta get rid of this tonight!"
Person 2: "Fuck it, I'm gonna put the team on my back and just chug it all."
one's will to carry the team and not let any obstacle come in between.... a desire that you must achieve.... to go ahead and get that green (if you know what i mean)
a) greg jennings: dog, he Put The Team On My Back; dog i gotta do this shit. i put the team on my fucking back though
b) marshawn lynch: I've never seen a nigga Put The Team On My Back like this nigga
One's will to carry the team and not let any obstacle come in between... a desire you must acheive, to go head and get that green, if you not what i mean.
"dawg, gotta do this shit. put da team on my back doe. my leg broke, i dont know how the fuck i'm running right now doe. i do this shit...for madden. oh shit, DARREN SHARPER! one of the most hardest hittin safety's in the league. BUT, i put the team on my back do. fuck it, cross the plane. touch down. greg jennings."
"he put the team on his fucking back do! he put the fucking team on his fucking back do. deshaun jackson put da team on my back!"
Marshawn Lynch put the team on his back do, for seattle fuck madden. darren sharper, hold muh dick. shut up drew brees