Re-invent the wheel
to waste time doing something that has already been done effectively
Not rocket science
e) Something is easy to understand or do
To Be At The Cutting Edge
to be right there in the lead, at the front
Make Someone Or Something Tick
to get something or someone going; to get someone interested; to get something moving along
Up and running
a) Ready to use
To Pull The Plug
to stop something in its tracks, to stop it immediately
Hit the panic button
To react rapidly or by taking emergency precautions.
On the same wavelength
To think similarly or to have the same ideas and opinions.
Get / have our wires crossed
To misunderstand someone
Chop Chop
quickly
what does it mean Blow a fuse
To get angry
to have a screw loose
to be slightly unbalanced or crazy