Just 2 minutes!

"Just 2 minutes!"

Every person in his/her daily routine life has used this line many a times though they don't actually mean it exactly. So what does it mean actually?

A girl being called by her parents for party and she says: "Just 2 minutes, Mom!"
She's not getting satisfied with her make-up & needs 10-15 minutes more time to give a final touch to her mascara foundation and get the perfection which according to them, they have never been able to achieve yet whenever they sit in front of the mirror!