It's a synonym for the word alpha male.

The name arose because of the large ♥♥♥♥♥ that owners of this name often had. Further, owners are often shown to be sexually irresistible to all men and women within a radius of 1 to 10 meters.

"Hey, Hynek, how you doing, you wanna f*ck with me?" or "Look, it's a Hynek, he must have a big ♥♥♥♥♥."