A more natural English translation could be: "My little brother is really big/large, but you can come see him for free."
Or, keeping in a more casual tone similar to the original phrase: "My little bro is actually huge, but come check him out for free."
A more natural English translation could be: "My little brother is really big/large, but you can come see him for free."
Or, keeping in a more casual tone similar to the original phrase: "My little bro is actually huge, but come check him out for free."