I heard this line in a song:
It wasn't a shot of cognac, it was a glass of cognac.
Then the crowd listening to the singer started laughing.
What is the difference in meaning between these two words in this context? Maybe I don't get it because I am a little far from the culture of drinking.
Here is the spotify link to the song, unfortunately that's a live version and I couldn't find it on YouTube. He sings that between 4:18 and 4:20.