What is "almost-grown cologne"? [closed]
Solution 1:
It means "cologne for someone who is almost a grown-up". A teenager might put on cologne, thinking that it will make them seem more like an adult and attractive to girls.
But in this poem, it actually annoyed his girlfriend. Rather than take it as a hint that he was trying too hard or used too much (a common error if you're not used to wearing fragrances), he concluded it was a problem with her ("her nose was funny acting"), and broke up with her.