Royal mail send it

A classic British phrase!

"Send it" is a common abbreviation of "Send it by Royal Mail", which is a way of saying "Send it by post" or "Send it through the postal service".

In the UK, Royal Mail is the official postal service, and "Send it" is a colloquial way of asking someone to send a letter, package, or parcel through the post. It's often used in informal settings, such as in conversations with friends or family.

For example:

• "Can you send it to my address?" (meaning "Can you send the letter/package to my home address?")
• "I'll send it to you tomorrow" (meaning "I'll send the letter/package to you through the post tomorrow")

So, if someone says "Send it", they're usually asking you to send something through the post, using Royal Mail's services.