Meanings
noun
- informalenthusiasm, energy, fervor
Origin
From a postwar advertising campaign for Esso petrol: "Put a tiger in your tank".
Full word history & related roots →Cite this entry
APA
tiger in one's tank. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/tiger%20in%20one's%20tank
MLA
“tiger in one's tank.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/tiger%20in%20one's%20tank. Accessed November 5, 2026.
Chicago
WatkinsX Dictionary, s.v. “tiger in one's tank,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/tiger%20in%20one's%20tank.
Source: tiger in one's tank on Wiktionary, CC BY-SA 4.0.