"The fanfiction actually began to seep into the show. The 'Bubbline' relationship between Marceline and Princess Bubblegum was never intended, but because it was a fan favourite, they're focusing on it a little bit. […]
Source: wiktionary
Bubbline
Synonyms for "bubbline"
Ranked by relevance and common usage.
Sample sentences
3 total sentences available.
I don't think there was a singular emotion to describe the moment Bubbline became canon.
Source: wiktionary
Still, intrigued by Bubbline, I'd occasionally check in on the fandom to see what was up with their relationship.
Source: wiktionary
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.