She may talk for a living but Triple M host and social media sensation Katie Lamb expects the cold to take her breath away when she takes the icy plunge for FightMND on Saturday.

Lamb, alongside Eagles great Glen Jakovich and Perth Wildcats champion Jesse Wagstaff, will brave an ice-filled dunk tank at Optus Stadium for The Big Freeze, a fundraiser co-founded by the late Neale Daniher to find a cure for motor neurone disease.

“I’m super excited to be involved and be a part of this incredible cause,” Lamb told The West Australian.

“Obviously, it’s extra special as well with Neale having just passed recently. I’m very honoured to be involved and I think it will be so much fun at the same time.”

Lamb revealed she would be dressed as cartoon character Shaun The Sheep, a nod to her last name and newfound motherhood, borrowing the costume from a listener.

Her Triple M co-host Xavier Ellis will also be involved, with the former West Coast and Hawthorn player to hit the target that will plunge Lamb into the icy water.

“He can’t wait to dunk me,” Lamb said.

“I think he’s going to fluff around with it a little bit knowing Xav and keep me up there in suspense, then he’ll shoot the shot at the last second. No doubt it’s going to be freezing. I reckon this cold is going to absolutely take my breath away, but I’m excited.”

Asked who out of the trio won’t be able to handle the cold, Lamb said: “I reckon Jacko.”

“He’s a big man, but I reckon underneath he’s gonna be an absolute wuss,” she said.