"Nonsense" by Sabrina Carpenter is a playful, energetic song that embodies the exhilarating chaos of falling head over heels. Let's break down the lyrics and their underlying meaning:

Verse 1:

• "Think I only want one number in my phone / I might change your contact to 'Don't Leave Me Alone'": She's already smitten, implying she's only interested in this one person.
• "You said you like my eyes and you like to make 'em roll / Treat me like a queen, now you got me feeling thrown, oh": He's paying her attention, but she feels a bit confused by his actions. The "thrown" suggests a mixed bag of emotions, possibly excitement and apprehension.

Pre-Chorus:

• "But I can't help myself when you get close to me / Baby, my tongue goes numb, sounds like 'bleh-blah-blee'": She's physically affected by his presence, a common symptom of infatuation. The "bleh-blah-blee" represents her inability to speak coherently due to nervousness.
• "I don't want no one else (No, no), baby, I'm in too deep / Here's a lil' song I wrote (A song I wrote), it's about you and me (Me)": This confirms her feelings are intense. The song becomes her way of expressing her emotions.

Chorus:

• "I'll be honest / Lookin' at you got me thinkin' nonsense / Cartwheels in my stomach when you walk in": She's admitting her thoughts are jumbled and illogical when he's around. The "cartwheels in my stomach" metaphor paints a picture of physical excitement and disorientation.
• "When you got your arms around me / Oh, it feels so good": The song's core message is pure joy, a feeling she's experiencing for the first time.
• "I had to jump the octave / I think I got an ex, but I forgot him / And I can't find my chill, I must've lost it / I don't even know, I'm talkin' nonsense": She's completely consumed by this new relationship, even forgetting her past. The "octave" jump suggests she's singing at a higher pitch, reflecting the heightened energy and excitement.

Verse 2:

• "I'm talkin' all around the clock / I'm talkin' hope nobody knocks / I'm talkin' opposite of soft / I'm talkin' wild, wild thoughts": This emphasizes the obsessive nature of her thoughts. She's lost in her feelings and wants nothing to interrupt this moment.
• "You gotta keep up with me / I got some young energy / I caught the L-O-V-E / How do you do this to me?": She's full of energy and passion, eager for him to match her intensity.

Pre-Chorus & Chorus: Repetition of previous sections.

Bridge:

• "I'm talkin', I'm talkin' (Na-na-na), I'm talkin' / (Blah-blah, blah-blah) / Ah-ah, ah-ah, ah (Ah-ah) / I don't even know anymore (Oh)": The nonsensical repetition reinforces the theme of her feelings being overwhelming.

Outro:

• "This song catchier than chickenpox is / I bet your house is where my other sock is / Woke up this morning, thought I'd write a pop hit, ha-ha / How quickly can you take your clothes off? Pop quiz / That one's not gonna make it / Most of these aren't gonna make—": This section lightens the mood. She's playfully poking fun at herself and the song's silliness, acknowledging that her love-struck thoughts are more than a little absurd. The "pop quiz" line adds a hint of flirty teasing.

In essence, "Nonsense" captures the whirlwind of emotions that accompany the early stages of a passionate relationship. It's a vibrant and playful depiction of love's ability to make us lose our minds and embrace a little bit of "nonsense."