Party __, Pull the String, Streamers Explode Out
Puzzle 17 of Party Planning Piece of Cake Pack
Question is: Party __, Pull the String, Streamers Explode Out
and the answer is: POPPERS
Word Meaning:
POPPERS — (informal) Drugs of the alkyl nitrate class used recreationally as a sexual stimulant, especially among gay men.
Definitions from Wiktionary.