胸むねを借かりる

expression, ichidan verb

practice with a stronger partner; spar with a superior

Idiomatic expression, originally from sumo, where a weaker wrestler is allowed to practice with a stronger one. Now used more broadly in sports and skill training to mean receiving guidance or practice from someone more skilled.

See also: 胸を貸す

• 若わか手て力りき士しが横よこ綱づなの胸むねを借かりて稽けい古こする。

  The young sumo wrestler practices by borrowing the chest of the yokozuna.

• テニス部ぶの後こう輩はいが先せん輩ぱいの胸むねを借かりて練れん習しゅうしている。

  The junior tennis club member is practicing with a senior as a stronger partner.