https://www.google.com/amp/s/amp.knowyourmeme.com/memes/bricked-up It was popularized in 2020. I'm 43. The only place I really frequent online is here. And it did also mean constipated before it got co-opted, although I guess that's more colloquial.
I swear I heard Workaholics saying bricked up like 15+ years ago, not from fucking Jack Harlow haha. I don't think that is factual but hey, who cares? it's just a funny way to say you got a boner
There's a scene from the anime Too Many Losing Heroines where the male protagonist tells the main "losing heroine" that he can't have a comeback for everything that she says. I wish I had a GIF of that, it would fit this situation exactly. Alas.