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2 definitions by TheMarionator

 
1.
This is where you get either male or female jizz on both your thumbs or two fingers and as quickly as you can draw a moustache starting from the middle of the upper lip and going outwards ...

KEY POINT : as you do this you MUST shout MARIO (In his accent is funnier) !
Sarah : 'Does that guy know he has a white moustache?'

Emily: 'Yeh looks crusty doesn't it?! '

Rachel : 'Yup I fucking MARIO'D him ;D '

Emily: GO MARIO !
by TheMarionator October 10, 2010
 
2.
This is plain and simple, when your getting sexual with someone and then once the man cums (it can be with female juices too ;D ) get some jizz and quickly draw a moustache starting inwards and going outwards and shout 'Its'a me MARIO!!'
Sarah : 'What is white stuff on that girl/guys moustache?'
Emily: 'LOL its crusty!'
Rachel: 'Yes I fucking mario'd him ;) '

Hence mario moustache
by TheMarionator October 11, 2010