釈迦に説法

teaching your grandmother to suck eggs; teaching something to someone who knows more than you; preaching to the choir; lecturing to the Buddha

Meaning

  1. exp
    teaching your grandmother to suck eggs; teaching something to someone who knows more than you; preaching to the choir; lecturing to the Buddha

Example sentences

  • Don't teach fish to swim.

  • That's like carrying coals to Newcastle.