A spontaneous, short burst of arousal that is stimulated by looking at a sexually explicit or lewd image. Not a erection or a chub. Its a natural response your penis makes to indicate that what it just looked at was pleasing or nutworthy. Could be a sign of coomerism or too much cooming on the penis that it attempts to limit its mobility by just twitching and not get full-on boners.
"As i was scrolling through my feed, i saw a nice pair of tits of the perfect size and my dick twitched the moment my eyes glared at them."
A man who dates women with the sole purpose of exploiting their time, energy, and labor while he sucks the joy and happiness from their lives.
"That guy's a soul digger. He'll expect you to work full time, but you'll be doing all the cooking, cleaning, laundry, shopping, and childcare while he plays video games or watches TV."