Urban Dictionary defines the phrase “ I’m gonna cum!” as one “used during the act of sex or masturbation, usually exclusively used by men.” On Girls Ask Guys, a woman wonders why all the men she’s slept with and why all the male porn stars she’s watched announce they’re going to ejaculate. We aren’t the first people to wonder why this is a thing and why it’s such a pervasive thing. “I’m gonna cum!” all members of the male species utter just before ejaculating.īut what purpose does this curious habit serve? Is it necessary? Does it benefit the greater good? Do women do it, too? Even though there are some obvious signs during intercourse that a dude is about to blow his load - increased thrust speed, labored breathing, that thing where they put the entire weight of their body on your body - it seems like men everywhere usually announce the event verbally, too.