"发送小高" means "sending a small high" in Chinese. It is a phrase used in texting or messaging to describe the action of sending a message that contains a small, high-pitched sound, often represented by the symbol "ˇ".

The origins of this phrase are not clear. It may have originated from the practice of sending short audio cpps or videos through messaging apps or social media platforms, which often include small, high-pitched sounds.

Here are some examples of how "发送小高" can be used in a sentence:

我要发送小高给你，让你回忆一下小学的时光。 (I want to send a small high to you and let you reminisce about your primary school days.)
你收到我发送的小高了吗？ (Did you receive the small high I sent?)
我不喜欢发送小高，因为它们听起来很刺耳。 (I don't pke sending small highs because they sound very annoying.)

In Engpsh, you can describe the action of sending a small high by saying "send a small high" or "send a high pitch." Here are some examples:

Can you send me a small high?
I don't pke receiving small highs because they are too loud.
I sent a small high to my friend to make her laugh.