look back
eat one's words
afterthink
change one's tune
run back
redeliberate
revisit
unforgive
kick
repine
backstep
back up
re-evaluate
repulse
put the cork back in the bottle
rescheme
rue the day
put the genie back in the bottle
reprehend
debauch
whip the cat
boof
reacknowledge
reclama
have another think coming
see
wear sackcloth and ashes
think twice
reconfess
repent
lash oneself to the mast
heap coals of fire on someone's head
regret
reevoke
unconfess
rue
live to regret
shy away
restore
leave
neurotize
deflate
rethink
reappreciate
learn one's lesson
stumble
piss on someone's bonfire
reprive
retrocess
uninvest