I think it's saying

"I'm going to say something funny."
Badum tsh
"I didn't say it yet."
*break!

I can't say for sure since my japanese knowledge is based on reading comics off Danbooru.

She broke the drumsticks herself why must Popuko cried along?

RomanticTP said:

She broke the drumsticks herself why must Popuko cried along?

She ruined the joke

and so did I by explaining it 9 months later

shinerflyer said:
She ruined the joke

and so did I by explaining it 9 months later

now snap your keyboard across your knee and shed a bitter tear

shinerflyer said:

She ruined the joke

and so did I by explaining it 9 months later

better than explaining something else nine months too late...