sharp cookie
One who is intelligent, bright, or sharp; especially, one who can identify attempts to deceive or mislead.
She's a sharp cookie and will have no trouble seeing a sales pitch for what it is.
VERBS
be, feel, look, seem | stay | keep sth
ADV
extremely, really, very, wickedly
The knife was extremely sharp and cut through the bread without any effort.
pretty, quite, rather
PHRASES
as sharp as a razor
VERBS
be
ADV
particularly, very
fairly, quite, rather
The pain in my shoulder was quite sharp when I first woke up this morning.
VERBS
be, seem
ADV
extremely, razor, very
Her extremely sharp eyes caught every small detail in the room.
pretty, quite
VERBS
be, sound
The teacher's tone was sharp when she discovered the students hadn't done their homework.
ADV
very | a bit, quite, rather
suddenly
When she heard the news, her expression suddenly became sharp and serious.
PREP
with
The teacher was sharp with the student who kept arriving late to class.
VERBS
be
ADV
extremely, very
The cheddar cheese in that sandwich was very sharp and overpowered the other flavors.
slightly
The lemon juice was slightly sharp, so I added a bit more sugar to the mixture.