Now that's a slam dunk, unless...

It's breakfast at Denny's, then it's a Grand Slam

its wheelchair basketball

the ref already blew his whistle

It's a home run

it's your doughnut in my coffee

She's tall and beautiful and you're much older, with no money

it's just a shot in the dark

someone moved the mascot's exercise trampoline

You were travelling

It bounces off the rim

it was an air-ball

You're a white guy

it's a Little Tikes Easyscore hoop

it's your boss sitting on the dunk tank

I'm damn drunk

the glove dosen't fit

your boss claims your idea as his own

CIA Director George Tenet was wrong and there are no weapons of mass destruction

It's an alley-oop

You are shooting free throws

you miss the basket

it's only Nerf basketball

It's what you call dipping an Oreo cookie in milk.

your balls are too big

you drown

you just hit your head on the diving board

technically, you get called on it

it was after the buzzer

You're bobbing for apples

It's a brick

you're playing baseball

you drop the ball

you traveled to get there

you're a midget holding an anvil

I have the ball. Those hoops are friggin' high.

time runs out before you sink it

we aren't playing basketball

you don't come up for air

We have coffee but you forgot to bring doughnuts

You're playing on a Fischer Price hoop

You're having biscuits with tea

the floor is lava and he's clinging to the rim for life!

you have enough hang time to turn it into a reverse layup

You're from Kansas

You went to the wrong basket

it was a demure lay up

You're competing against Kobayashi in a hot dog eating contest

your catch your elbow on the rim - awkward!

It's a lay up

you travelled

you're not michael jordan

You're dipping donuts

it goes clank

You were blocked by the best NBA guard player in town

it's a swoosh

you weigh about 400 pounds

your a real man playing hockey

You forget to jump.

you're Barney hitting on a girl at MacLaren's

your name is Duncan

you're on a ladder

you have limp wrists!

your doctor told you NOT to play basketball

you need instant replay

You smash the backboard. Then that's just a personal injury case.

His fingers are stuck in the net.

You're dribbling an Oreo instead of a Spalding.

it was your granny's basket

You're one of those terrible mascots on Conan