to mull sth over	to think about sth carefully
to change sth around	to move objects into different positions
to do up	to decorate
to be round the bend	to go crazy
to go astray	to get lost
to knock off	to stop doing sth
to make sb's day	to make sb happy
to snow sb under with sth	to overwhelm
to kick sth off with sth	to start sth with sth
wordy	uses too many words
insurmountable	that cannot be overcome
to keep sth under one's hat	to keep sth quiet
to get sb's drift	to get the sense, to understand
to let sth on to sb	to share the secret
to blurt out	to blab, to reveal sth unintentionally
to catch on to sth	to understand
to get one's point across	to make sb understand one's point of view
to chance upon sth	to happen to find
to slip up	to make a mistake
to fly off the handle	to lose one's temper
to be up in arms about sth	to be furious
rule of thumb	a practical method of asessing things
to summon up	to gather
to come up in sth	to be covered with sth
to crack down on sth	to try to control sth troublesome
to go down well	to be received well
to back down	to withdraw, to give up, to yield
red tape	bureaucracy
to come out	to be removed
at long last	in the end
to break even	not to lose and not to profit
lot	destiny
to drum up	to get
to be in the red	to have debts
to dilute	to make sth thinner by adding water
to dispense	to give out/ to stop using sth
to compact	to press sth firmly together in order to make it smaller