Vape pen, informally

ECIG

This handheld device often mimics smoking but produces vapor instead; you might see it in flavors like mint or mango.

"Vape pen, informally" clues the answer "ECIG" because it’s a common shorthand for "electronic cigarette," the device people use for vaping. The term drops the full word down to its first letter and first three letters of the second word, making it a quick, casual abbreviation. You’ll often see it in ads, online forums, or everyday conversation where brevity is key.