Slimani made the move from Leicester City on January 31, and the Algerian will spend the remainder of the 2017-18 campaign on loan with the Magpies.
"I knew a lot about Newcastle, Alan Shearer, I'd also seen the film Goal," Chronicle Live quotes Slimani as saying. "It's a great club, a very famous club, world-renowned players like Alan Shearer .
"I'm here to give my best to fight for my team. I hope I can show what I'm capable of. I think Newcastle's a big club and it's a good choice. A lot of clubs got in touch but I'm pretty sure I made the right choice.
"I'm here to support the team and have a good second half to the season. At Leicester, I had a good time there and a good season, but it was always about injuries and getting injured but now it's about Newcastle.
"Rafa phoned me and we had a good chat there was a good feeling between us and it's important to get a call like this, to know that you're wanted by a big coach like him. I was sure I was going to leave to start afresh. I wanted to go."
Slimani could make his Newcastle debut in Sunday's Premier League clash with Manchester United.