noun
portable gasoline can; gas can
A small, portable container for carrying gasoline or other fuel, often used for refueling vehicles or equipment.
キャンプに行くときは、予備の携行缶を車に積んでおく。
When going camping, I keep a spare gas can in the car.
ガソリンスタンドで携行缶に給油し
I filled up the portable gas can at the gas station.
Compound of 携行 (portable, carry) and 缶 (can). The exact historical derivation is uncertain, but the word is a straightforward modern compound.