馬 - Ma3 - Horse

There’s a neat expression: 馬上 - Ma3 Shang4 - Horse On - Immediately

For example, 我馬上來 - Wo3 Ma3 Shang4 Lai2 - I Immediately Come — I’m coming immediately, I’ll be right there.

Maybe I’ll start using this one in English. “Steve, can you write this new program?” “Sure, I’ll code it on a horse!”