food for thought	sth to think about
whet one's appetite	make sb keen to experience more of sth
be at a loss for words	no to know what to say
make one's mouth water	cause sb to desire sth, especially food
cut corners	use a cheaper/easier method
in full swing	at a very lively stage/point
pull a few strings	use influence to avhieve sth
cannot hold a candle to sb/sth	cannot be compared favourable with sth
pick up the tab	pay for sth
feast one's eyes on sb/sth	look with pleasure at sth
not be one's cup of tea	not ot be to one's taste
scrape the bottom of the barrel	be left with the worst person/objet
break the ice	make sb relax
in the soup	in trouble
turn sb's stomach	cause sb to feel sick
cast pearls before swine	offer sth good to sb who can't appreciate it
it's no use crying over split milk	there's no point in regreting sth that has happened
sour grapes	negative attitude because of jealousy
as dry as a bone	very dry
up to scratch	of the desired standard