(for) donkey's years	a long time
bury the hatchet	to forget old quarrels
the apple of sb's eyes	sb one is most fond of
the black sheep of the family	a person strongly dissaproved of by members of family
play hard to get	to pretend one is not interested in sb
putty in sb hands	easily controlled or manipulated
drive sb round the bend	to annoy sb a lot
tie the knot	to get married
blood is thicker than water	blood ties or family relationships are the strongest
an old flame	sb one was once in love with
stole her heart	to make sb fall in love with one
the man of her dreams	the ideal man
head over heels in love	very much in love with sb
break sb heart	to cause sb great unhappiness
a change of heart	a change of one's feelings for sth/sb
wear one's heart on one's sleeve	to allow one's feelings to be too obvious
see eye to eye	to agree(about matters)
all is fair in love and war	something that you say which means behaviour that is unpleasant or not fair is acceptable during an
in clover	in comfort/wealth
(is) the bee's knees	to be the best there is (pępek świata)
give one's the boot	to fire sb from the job
a lame duck	a person/comapny that is a weak/failure
feel the pinch	to suffer because of lack of money
in the red	in debt
hit the rock bottom	to reach the lowest point
in the black	in credit/ making profit
play with fire	to take dangerous risk
step into one's shoes	to replace sb
a firm hand	control and discipline
pay dividends	to bring advantages at a later date
a small fortune	a lot of money
meant business	to be serious about what one says/intends
get off the ground	to start a buisness/company/project
bear fruit	to produce good results
live on a shoestring	to live on a smaller budget
burn the midnight oil	to work very late at night to achieve sth
be rolling in it	to be rich
keep my head above water	to survive despite financial problems
money down the drain	money wasted
tight one's belt	to manage with very little money