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

go while the going is good • make good going
go while the going is good —leave while the conditions are
still favorable: I feel that it’s time that we went out as winners
… go while the going is good, so to speak.
make good going —(UK coll.) advance rapidly; make good
progress: You should be an experienced hiker, have suitable
mountain equipment and be able to make good going.
Note: 
The expression does not correlate in meaning with the
phrase be good to go—(coll.) be ready or prepared for smth.: I
just need to put together a plan and then we are good to go.
go wild • run wild
go wild —
1
. be very excited or enthusiastic about smth.
(indicating it in one’s behavior by shouting, cheering, etc.):
London went wild with delight when the great news came
through yesterday. 2. be madly attracted by a person: She was
just hitting puberty, and Solomon was going wild about her.
Devorah was highly desirable by any male baboon’s standards.
Note: 
The expression is not equivalent in meaning to the phrase
go wilding
—(also: go out wilding ) go on a rampage (originally
of youth gangs roaming the streets and harassing passers-by): I’ll
also remember this next time college students go wilding when
their team wins or loses a championship.
run wild —
1
. become madly violent; go out of control: The
CIA is not a sorcerer’s apprentice that has run wild, but … is
under strict government control. 2. (of animals and plants)
revert to a state of nature; no longer live under domestication
or cultivation: These cattle, having run wild upon the plains
of western Texas, are collected by a grand “round-up.”
goat’s foot • goat-foot
goat’s foot—a South African low-growing plant Oxalis cap-
rina of the wood sorrel family: Henry was eating breakfast
under an arbor of potato-vines and goat’s foot.
goat-foot—
1
. is used of the Greek god Pan: It was the hour
of Pan. I could almost think I saw the goat-foot playing his
pipes by the brook. 2. (attrib.) of a goat-foot faun or satyr:
He [Bacchus] was shown accompanied by goat-foot satyrs,
centaurs, and crazed female Bacchantes.