Kissing arse (usually your boss') to improve your position in the organisation. This would get you mi mi points.
General brown nosing.
Can be represented very well by using the world's smallest mittens or by making a mouth with your hands as if using a sock puppet whilst articulating the words.
'Fred mi mi'ed today when he claimed Steve Jobs' powerpoint presentation was his own.'
'Jo: 'I've just had a great meeting with the boss - they are really pleased with the work I have done.'
Mary (whilst motioning with her hand): 'MI MI MI MI!'
ex. 2 i wish mimi liked me, shes so beautiful
ex. 3 mimi is SUCH a good friend even though shes the most popular girl in the school.