"Last night took an 'L'"
"But, tonight I bounce back"
 
This song is about resilience.
Taking an "L" means taking a loss.
 
Embarrassing Admission:
The first time I heard it, I thought the lyrics were:
"Last night, took an elbow."
"Tonight, I bounce back."
The lyrics still work, though!
 

Ultimately, the song is about taking a hit and coming back even stronger.
 
Law school can beat you up, daily.
Building resilience is key.
 
Here's to hoping that this song gives you that extra little boost to help you
Bounce Back!