Continuity mistake: Higgins, 5 meters away from Eliza, tells her she talks like a bird, to which she replies with a loud cry, then closes her mouth. From a different angle her mouth is open, her head is down and Higgins is standing a couple centimeters away from her.
Continuity mistake: During the first song, Higgins sits by a column and talks to a fruit seller while Pickering's shadow is projected on the column. From a different angle the shadow is gone.
Continuity mistake: After Eliza drops her basket and is kneeling on the curb, from her POV there are cars coming towards her, yet they disappear in the immediate opposite angles.
Continuity mistake: Eliza bumps into a man looking for a taxi and drops her basket three meters behind. When she stands up the basket is on her hand.
Continuity mistake: When the move starts and rain is pouring, a worker uncovers a tarp from a fruit stall, half a second later the tarp is on and he uncovers it again.
Continuity mistake: In the scene where Eliza starts to sing the song "Loverly". She goes "all i want is a room somewhere." and at ". oh wouldn't it be Loverly" she sits down and her apron is halfway between her legs. When she continues the song the angle changes and her apron is now covering both her legs, at her right a man disappears and at her left a woman, at her left a man walks later than in previous angle the sacks behind her change formation and the carriage wheel is now lighted.
Answer: It just means put away (roll up) the dance floor so that he won't be distracted with dancing when he has to be at the church on time.
Bishop73