- Crosses the Line Twice:
- His stage persona is deliberately played up to be a terrible, narcissistic person who sings about things like Helen Keller being the perfect woman, falling in love with an old woman and then her three-year-old granddaughter, giving head to Satan, a young boy named Adolf with all of the mannerisms of Adolf Hitler, and a barbeque hosted by the Ku Klux Klan. But it's okay, because it's hilarious. And satirical.
- "Kill Yourself" from Make Happy milks the Black Comedy and Refuge in Audacity for all its worth. By the end, he's just coming up with more and more outlandish suicide methods.
- Ear Worm: Most of his choruses; "Words Words Words", "Oh Bo", "Love Is...", etc. Also, the background music for "Rant".
- Ensemble Darkhorse: Left Brain and Right Brain, from their eponymous skit/song. Especially Right Brain.
- Epic Riff: The piano riffs of "Art is Dead" and "Oh Bo".
- The piano riff of "Art is Dead" has gained some fame by itself, and people were quick to note when Bo began playing it in "Playing Piano Gets You Laid", a video collab with College Humor.
- Genius Bonus: "What's domain, domain range? / A kid with too much in his pants". In math, domain is expressed by x, while range is expressed by y—the joke here being that said person is "XXY", which is the chromosomal makeup for an intersex.
- The more you know about biblical stuff, the funnier and/or more meaningful "Rant" is.
- Growing the Beard: Seems to have happened around the time of Words Words Words. He's expressed embarrassment and dislike of much of his work prior to that period, which was more based around shock value for the sake of shock value rather than making a satirical point.
- Harsher in Hindsight: His "racial humor" skit had its effect amplified with the racial unrest that has happened since, with the shootings of several young African-American males as well as the Ferguson riots. Bo really meant it when he said whites and blacks were destined to fight forever.
- Hilarious in Hindsight: In Welcome to YouTube, he says that "most of the best YouTubers are either Asian or they're gay, so there's an untapped YouTube celebrity and his name is George Takei." While he's not so much specifically a YouTube celebrity, but since the song's debut, Takei has gained a huge internet following.
- Moe: Bo himself qualifies sometimes, especially when he plays up the woobieness. Also Right Brain from "Left Brain, Right Brain", who's basically the living embodiment of Bo's Adorkableness.
- Signature Song: "My Whole Family..." was the song that propelled Bo to his first bit of stardom, although "Oh Bo" is seemingly this as of late, considering the unanimous approval and participation it gets at live performances.
- Some Anvils Need to Be Dropped:
Pretty obvious, just don't fuckin' rape people. ...Didn't think I had to write that one down for ya.
- His point in "From God's Perspective" that people shouldn't abstain from rape because they think God wants them to — they should abstain from rape because it's wrong.
- Squick: The last few lines of "Sunday School":
I'm gay for Jesus
Fill me with Your grace
Pour Your love all over me
But please aim away from my face
- What Do You Mean, It Wasn't Made on Drugs?: The music video for "Words, Words, Words". Boy howdy.
- The Woobie: Sometimes portrays himself as this.