Mefl i’r cog ni lyfo’i law – shame on the cook who doesn’t lick their own fingers.

Mefl i’r cog ni lyfo’i law.
Dihareb Cymraeg. Ystyr Saesneg; English meaning:
Shame on the cook who licks not his hands. An ill cook that cannot lick his own fingers.

Addaswyd o ddetholiad Diarhebion Cymraeg gan J. J. Evans 1965.