harden up
verbDefinitions
To tighten up a sailboat's sheets in order to prevent luffing.
To become or make (something, someone) hard, either literally or figuratively.
The neighborhood
Vish — recursive loop
No curated loop yet for harden up. Loops are being traced one word at a time while the ingestion pipeline matures.
sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA