sibcest
Sexual or romantic relations between siblingsSexual or romantic relations between siblings.
Meaning
1 senses(rare, uncountable)Sexual or romantic relations between siblings.
Origin
From sibling + -cest.From sibling + -cest.
Wiktionary, CC BY-SA 4.0 · source
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable