The Chinglish translation of Chinese "让我看看",which means "let me take a look", but since "看" in Chinese can means "see", "让我看看" might be translated as "let(让) me(我) see(看) see(看)" in a localized(to China) informal way.
"Hey guys, I got a new phone!"
"Really? Let me see see!"
When you wave your hand in front of your face like John cena, saying “you can’t see me” as you bust a fat nut in her eyes.