1.  mill about(v = verb.stative) footle, hang around, lallygag, linger, loaf, loiter, lollygag, lounge, lurk, mess about, mill around, tarry - be about; "The high school students like to loiter in the Central Square"; "Who is this man that is hanging around the department?"
is one way to be
Sample sentences: Somebody ----s; Somebody ----s PP

2.  mill about(v = verb.motion) mill, mill around - move about in a confused manner;
is one way to move
Sample sentences: Something ----s

barker's mill, cider mill, coffee mill, cotton mill, flour mill, gastric mill, gin mill, james mill, john mill, john stuart mill, mill, mill agent, mill around, mill wheel, paper mill, pepper mill, quartz mill, rolling mill, stamp mill, stamping mill, steel mill, textile mill, water mill