lit. to strike while the iron is hot, meaning to get things done without delay

to do things together out of convenience; to do something whilst the timing is good; to act quickly while the opportunity is still available; to strike while the iron is hot

while; avail oneself of;taking advantage of

taking advantage of someone when they are in a vulnerable situation; a cheap shot;

literally: 'to take advantage of the opportunity when the ground is soft enough to dig', an expression to curse someone to tell them to go and dig their own grave whilst the ground is still soft (i.e. they should take the chance now and go quickly to die), somewhat similar to the expression 'go to hell'; a more recent alternative interpretation to this phrase (used in a vulgar manner) is to tell someone to pack their bags and go whilst they have the chance

to go to market

(slang) to go to a flea market; to visit a street market; (phrasal verb) to join the fun

(adverb) conveniently; on the way; on one's way; at one's convenience; in passing; to do something else whilst one is at it (might as well…); (verb) catch this present opportunity or chance, …

to eat the food while it's still hot

going somewhere popular nowadays (spoken)

to exploit an opportunity [colloquial]

to join in the fun; while one is in high spirits

to exploit an opportunity [colloquial]

do it early

while hot

by the way

take advantage of the situation

take advantage of the emptiness and enter