He left the mic after several songs with a slightly raspy voice to be met by high fives from the crowd.
Most of the songs had serious and personal lyrics.
"Penn State, it's all about lows and highs," one performer said to preface his song about a girl.
Many lyrics also had a humorous bent. "I act like Tiger Woods how I play the course," one performer said. Later in the same song, he sang, "Think I act like Pokemon, the way I peek at you."
Buim himself doesn't freestyle but sees himself more as an organizer for those who love the music he does.
"[Hip-Hop Anonymous] is open for anyone who wants to DJ, freestyle, even breakers [break dancers]," Buim said. "I'm just starting to do my own production. Hopefully, I'll be able to make my own music for people to rhyme over."
Although almost all the freestylers at the last performance at the Hooka Lounge were male, Buim said that he is trying to create an environment that is open to all freestylers.
"It doesn't have any classification -- what race you have to be, what gender, what age," he said.
Though Hip-hop Anonymous has gotten off to a late start this semester, Buim was pleased by its popularity so far.
"I was really glad that there was an audience ... Freestyling is something that is really hard to do," he said. Anyone interested in performing can contact Buim at 814-862-7739.