denatured alcohol (noun)

1. The protagonist in the horror novel accidentally ingests a small amount of denatured alcohol, which causes him to hallucinate and experience terrifying nightmares.

2. During religious ceremonies, denatured alcohol is sometimes used as a cleansing agent to purify sacred items.

3. The couple enjoyed a romantic evening on the porch, sipping cocktails made with denatured alcohol as they watched the sun set.

4. In a playful prank, someone replaced their friend's water bottle with a bottle of denatured alcohol and waited for the funny reaction when the friend took a sip.