something bordering on weird

Since you’re doing some Welsh lessons, I was wondering if you’d teach us some Welsh idioms? I have a committed love for all the different sayings in different languages so I’d love to know if there are any particular to Welsh!

Thank you!! (Diolch?!)

Tonnes! Let's see

Mae'n bwrw hen wragedd a ffyn: it's raining old ladies and sticks (it's raining cats and dogs)

Mae'n ar y gweill: it's on the (knitting) needles (It's in progress)

Mae e'n cadw draenog yn ei boced: he has a hedgehog in his pocket (he's stingy with money)

Dawnsio ar y dibyn: dancing on the cliff edge (playing with fire)

Ar bigau ddrain: on thorn tips (on tenterhooks)

Y drwg yn y caws: the bad in the cheese (the problem)

A'i wynt yn ei ddwrn: with his wind in his fist (he's out of breath)

A ddwg ŵy a ddwg fwy: he who steals an egg will steal more

Fel cynffon buwch: like a cow's tail (later than everyone else)

Angel pen ffordd, diawl pen tân: angel on the road, devil at the fireplace (two-faced)

Mi/fe rown fy mhen i'w dorri: I'll give my head for breaking (I'm absolutely certain)

Paid â chodi pais ar ôl piso: don't lift your petticoat after pissing (don't cry over spilt milk)

Deuparth gwaith ei ddechrau: Two-thirds of a job is starting it (the first step is the hardest)

Ennyn cannwyll i chwilio am haul canoldydd: to light a candle to search for the mid-day sun (a fool's errand)

Hawdd dywedyd ‘mynydd’ na myned drosto: It is easier to say ‘mountain’ than to go over it (easier said than done)

Gwyn y gwêl y frân ei chyw: The crow sees her chick as white (To have a biased opinion of someone)

And finally, my personal favourite:

Mae rhaid i mi dod nôl at fyng nghoed: I have to get back to my trees (I am mega stressed and I need to find my equilibrium.)