Nice one. I love all these brilliant Welsh expressions and collect them in my own “Phraseionary / Ymadroddiadur”. One of my current faves is ‘Reis a chips’ meaning bisexual. Also, ‘Dim gobaith caneri’ (not a canary’s hope); ‘Disgleirio fel ceiliau ci’ (shining like a dog’s testicles) and ‘fel cwnigen drwy gae o letys’ (like a rabbit through a field of lettuce)…