Lamer joke

Came back from Teluk Batik.
Where else? I went to the beach, and i saw this small kid with a blue colour swimming tube round his waist... like this....

Out of pure boredom, I asked my brother,
"What's blue and looks like grass?"

What's your guess? Well, the answer is the swimming tube. I lied about the grass.
Finally, I found an even lamer joke.