The serial sicko convicted of masturbating on the subway and then attacking a woman who saw the disgusting sight was slapped with a 10-year prison sentence Thursday — as his victim slammed him for upending her life over “something as pointless as him wanting to jerk off in public.”

Reggie Frank, 48, who was convicted in September of second-degree assault and two counts of illegal weapon possession, was hit with the sentence in Brooklyn Supreme Court after a prosecutor read a victim-impact statement from the unnamed straphanger.

“I wake up every day knowing that a perfect stranger could have that amount of rage inside of them, such rage that he would try to take my life — to end me like an inconsequential bug — for something as pointless as him wanting to jerk off in public,” Assistant District Attorney Michelle Haddad read from the statement.

“It’s not fair what happened to me. I did everything as right as I could and I still met Reggie Frank, a man who almost took my life from me.”

Frank had a prolific run of exposing himself on the subway prior to his arrest for the assault, with 20 prior convictions for public lewdness, according to Brooklyn District Attorney Eric Gonzalez.

During the Feb. 23, 2018 attack, the victim dozed off on a southbound R train, then had a rude awakening about 2 a.m. as the train was pulling into the 36th Street stop in Sunset Park — when she saw Frank sitting across from her and pleasuring himself.

The woman screamed and Frank sprayed her in the face with pepper spray. He then pulled out a switchblade and slashed her hand while she was defending herself — then tried to rip her eye out of its socket with his finger, according to her victim impact statement.

But during the attack, the brave woman was able to turn the blade back on Frank and he was stabbed twice.

“I remember him — his stench, his cruelty, his voice. I can’t even escape into the things I loved doing,” she wrote.

While Haddad read the statement, Frank, wearing an orange jail uniform with his hands cuffed behind his back, occasionally shook his head — and when it was his turn to speak, he whined that he was the real victim.

“She was trying to kill me,” Reggie Frank told the judge. “That’s what I truly believe.”

Frank’s sob story did nothing to sway Brooklyn Supreme Court Justice Evelyn Laporte, who handed Frank two five-year sentences to run back-to-back, followed by another 10 years of supervised release.