no news is good news We say this to make somebody feel better when they are worried about someone/something and they haven’t received any information.
pull someone’s leg Say something that is not true as a way of making a joke.
out of kilter (out of whack) Not in exactly the right position or condition or not working in the usual or proper way in relation to something else.
grind (ground/ground) to a halt (come to a grinding halt) Slow down gradually and then stop completely
spread like wildfire Spread (spread/spread) very fast
not a happy bunny Not satisfied with a situation (BrE, informal) (‘bunny’ is a child’s word for ‘rabbit’)
flummoxed (adj) /ˈflʌm.əkst/ So confused that you don’t know what to do
‘jump for joy’ Feel extremely happy and show it with excited movements. FREE PHOTO
be like getting blood out of a stone If you say this, you find it very difficult to make someone tell or give you something, sometimes because of their personality or mood.
much of a muchness Very similar