Mainly used by teenagers to secretly take alcohol without their parents knowing.
The process is to take up to an inch of liquour from each bottle you have and add them together into one large bottle so that it looks doesn't like some of the alcohol went 'missing'
1) We shared a dolly mixture last night.
2) 'Why do you do a dolly mixture?'
'So that my mom doesn't find out that i'm secretly taking some. You should try it sometime.'