Anyone know what this is...bought it in the wellington market today along with some other stuff and have no idea what I bought :-)

Was going to attach picture but have no quota...

Its about a foot long...round and in the shape of a stubby cucomber with whitish blotches stronger towards the base. It smells like beans when cut and its white inside. It tastes like you need to cook it and it has small white hairs on it.

if you can solve this I have one more for you!