A dictionary of Confusable Phrases: More Than 10,000 Idioms and Collocations

way to go Einstein • way to go Grace
way to go Einstein—(sarcastic) is used to tell a person he
made a mistake or is not very smart: In all of the excitement,
he ran a red light, barely avoiding an accident. “Way to go,
Einstein!” a voice from the back seat exclaimed.
way to go Grace—(sarcastic) is used to tell a person he or she
is clumsy: Amanda tripped, lurched forward, caught her foot
in the hem of her dress, and fell to her hands and knees. “Way
to go, Grace!” she exclaimed.
Note:
Both expressions are antonymous in meaning to the
phrase way to go—(also: that’s the way to go) used as an encour-
agement to proceed with the chosen plan or process: “Way to go!”
said Mary when Bob finally got the car started.
weak as a cat • weak as water
weak as a cat—(also: weak as a kitten) lacking in physical
strength: He must have been as weak as a kitten, with all the
blood he’d lost.
weak as water —(also: weak as dishwater) 
1
. = weak as a cat:
Sir, I am only just getting well of a fever, and I am as weak
as water. 2. lacking in determination; easily influenced by
other people: You love Eva, and Eva loves you, Ernest; but
remember this, she is weak as water. 3. (of tea, etc.) watery;
not having enough flavor: These poor and hungry people are
accustomed to drinks almost as weak as water. 4. (of an evi-
dence, etc.) not convincing; inefficient: His brashness couldn’t
cover the fact that his argument was weak as water.
weak for someone • weak with someone
weak for someone —(of tea, etc.) not having enough flavor or
not strong enough to a person’s taste: The tea was too weak
for him to really enjoy.
weak with someone —lacking in firmness when dealing with
a person: He was spoiling his son’s character by being weak
with him.