yarn bombing
noun /ˈjɑːn bɒmɪŋ/
/ˈjɑːrn bɑːmɪŋ/
(also yarn storming
[uncountable] (informal) /ˈjɑːn stɔːmɪŋ/
/ˈjɑːrn stɔːrmɪŋ/
)- a type of art in which people decorate items in the streets with colourful pieces of knitting or other items made using wool, cotton, etc., often doing it secretly
- Yarn bombing is another recent form of graffiti.