In March 2014, he decided to buckle down, eat better and exercise regularly.
But winning football teams just buckle down, slowly take control, and—above all else—fight.
After decades of pushing kids to buckle down and learn more at ever-younger ages, we haven't gotten very far.
"spiked metal ring for holding a belt, etc., c.1300, bukel, from Old French bocle "boss (of a shield)," then "shield," then by further extension "buckle, metal ring," (12c., Modern French boucle), from Latin buccula "cheek strap of a helmet," in Late Latin "boss of a shield," diminutive of bucca "cheek" (see bouche).
Boucle in the middle ages had the double sense of a "shield's boss" and "a ring"; the last sense has alone survived, and it metaph. developed in the boucle de cheveux, ringlets. [Kitchin]
"distort, warp, bend out of shape" 1520s, bokelen "to arch the body," from Middle French boucler "to bulge," from Old French bocler "to bulge," from bocle "boss of a shield" (see buckle (n.)). Meaning "bend under strong pressure" is from 1590s (figurative from 1640s) . Related: Buckled; buckling.
To set seriously to work; put slothful ease behind one (1860s+)
To hit; clobber (1990s+ Teenagers)