Hardly. Common phrases are ones that are widely recognized and used in general communication. 'Gut full of cum story' is not something that would come up in typical conversations, in educational materials, or in most forms of popular culture. It's so out of the ordinary that it's highly unlikely to be a common phrase.
No. It's not a common phrase at all. I've never heard it used in normal, everyday language or in mainstream literature or media.
Definitely not. It's a very unusual combination of words that doesn't seem to fit into any common idiomatic or phraseological patterns. It seems more like something that would be made up for a very specific, and probably rather strange, piece of writing or storytelling.
Chapter 4 is the strongest chapter-level answer because it starts from Qiao regretted her words as soon as they left her mouth. and follows through on A little girl acting mysterious, learning fortune-telling, what is this....
Chapter 348, "Seeing You Reminds Me of My Cousin", is the clearest early answer because it turns Shanshui Pear Garden's situation into a concrete plot event. Early on, Jiang Li's voice wasn't loud, but it carried enough power to....
Chapter 881, "How to Deal with Her Few Younger Brothers?", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event. Early on, After settling Jiang Li in the car, Zhao Lang fetched the medical kit.... By the end, It was Jiang Cheng in pajamas..
Chapter 549, "Is This How You Be a Brother?", is the clearest early answer because it turns Is's situation into a concrete plot event. It opens with Jiang Li led her group deeper into the island. and closes on You can eat dinner after you've chopped twenty pieces." Jiang Cheng:....
Chapter 727, "Can't Keep Up with the Twists Anymore", is the clearest early answer because it turns Demon King's situation into a concrete plot event.
Chapter 595, "Four-legged Black Toad", is the clearest early answer because it turns Moon Palace's situation into a concrete plot event. Early on, Jiang Li steadied himself with support, endured for a while, and then....
Chapter 493, "Affinity Only 50 Now?!", is the clearest early answer because it turns Brother Shaojing's situation into a concrete plot event. The chapter gives readers a real answer by opening on You!" Shang Shaojing was so annoyed he gritted his teeth, "Jiang Yan,...
Chapter 642, "Congratulations to Qi Tianyu, Points Increased by 10!", is the clearest early answer because it turns All's situation into a concrete plot event. It opens with We'll be the first to catch the plane, then we head straight to party!
Chapter 442, "Let's Form an Alliance", is the clearest early answer because a shaky connection becomes usable in the plot. The chapter turns that into something concrete by moving from Chang Rong was bewildered, "So, she seems pretty impressive." More...
Chapter 720, "A Bastard Child Behaving So Arrogantly?", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event. It opens with As finals approached, with a wave of his hand, Jiang Li sent Jiang...