Meanings

suddenly turning for the worse

stalled session of the Diet (Japanese Parliament)

the situation reverses itself

changing again and again

changing again and again

policy change (reversal)

forward somersault

to lose one's presence of mind

backward somersault

one's days and nights being reversed

turning things around with a home run

full operation

cartwheel

motorized two-wheeled vehicle (with a displacement of less than 50cc)

rolling stone

changing post (department, club, etc.)

to knock down

bike trail

to roll about with laughter

toppling sideways