The indecisive person's go-to when confronted with a decision they have to make. Next to 'it doesn't matter to me'. Rather than collaborate to come to a conclusion, they whip this puppy out to relieve all liability from them onto the other person.
'Should we stick with our original plans or go out with friend?'

'It's up to you'

'Any place you have in mind to go out to eat?'

'It's up to you'

'Music?'

'It's up to you'

'Paper or plastic?'

'It's up to you'

'Do you have any preferences at all?'

'Its up to you.'
by bilbobags August 20, 2020
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Used when trying to say "I don't frankly give enough of a damn to consider which you should choose, ask someone else." in a polite way.
Guy1: Should I listen to A or B?
Guy2: (indifferently and nonchalantly) Up to you.
Guy1: -.-
by derpderpderpherp January 23, 2011
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A sentence used by a legendary man that has the power to kill people with annoyance
Dude: Hey wanna play?
You: Sure
Dude: UP TO YOU!
You: x_x
by Pizza_boy_jeff October 04, 2017
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A phrase said when someone makes you feel like horse manure and then acts like they are going to rectify their carelessness by doing something that would actually constitute a change in their behavior, when really it's just bullshit words that allow them to be forgiven until they repeat said horse manure behavior.
"Sorry I stood you up, I'll make it up to you!"
by Jyezaaa January 06, 2017
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