英语 idiom list

on the point of
on the prowl
on the pull
on the Q.T.
on the rack
on the radar
on the rag
on the rails
on the rampage
on the ready
on the receiving end
on the right side of history
on the rise
on the run
on the same page
on the same wavelength
on the shelf
on the side of the angels
on the skids
on the sly
on the spot
on-the-spot
on the square
on the stocks
on the street
on the table
on the toss of a coin
on the trot
on the up
on the up-and-up
on the uptake
on the wagon
on the wane
on the warpath
on the way
on the whole
on the wrong side of history
on the wrong side of the blanket
on thin ice
on this score
on top
on top of
on top of the world
on track
onward and upward
onwards and upwards
on what score
on with you
on yer bike
oof-bird
open a can of whoop ass
open-armed
open book
open-collar
open-door policy
open doors
open field
open fire
opening of an envelope
open invitation
open one's legs
open one's mind
open one's mouth
open Pandora's box
open season
open someone's eyes
open the batting
open the door
open the floodgates
open the kimono
open the schools
open wide
opinions are like assholes
opposite number
oranges with oranges
or else
Oreo cookie
orgiast
or something
or what
or words to that effect
ostrich policy
other end of the ball
other fish in the sea
other half
other head
other man
other side
other than
otherwise engaged
other woman
our era
out and about
out cold
out for blood
out loud
out of a nightmare
out of bounds
out of central casting
out of character