1. strike while the iron is hot - Verb
2. strike while the iron is hot - Phrase
(metallurgy, blacksmithing, literally) To strike a hot piece of metal, especially iron, with a mallet or other tool before it cools, while it is still hot enough to be shaped.
(idiomatic) To act on an opportunity promptly while favorable conditions exist; to avoid waiting.
We should strike while the iron is hot and order some immediately, before they change the offer.
Plus the public's attention span is so short right now, if a skater doesn't strike while the iron is hot... well it's not like people will forget you, but they just won't care anymore. Brian Boitano
You have to make the most of the chances that come your way. You have to strike while the iron is hot. Spanish Proverb
Sometimes, you’ve got to strike while the iron is hot, and is practically a cinematic blacksmith’s dream in that respect. Source: Internet
Thomas will strike while the iron is hot. Source: Internet