big·gie
 /ˈbıgi/  noun  ,  pl   -gies [  count  ]
   informal   : someone or something that is very big or important
   He met with some television biggies.
   They've had problems before, but this one's a real biggie.
   (chiefly US) “Sorry I'm late.” “No biggie. [=it's not a problem] I'm not in a hurry.”