Definitions
1.verbTo make noisy puffing sounds, as of a steam locomotive.
2.verbTo break wind.
3.verbTo intermittently extinguish and reignite a powder charge.
4.adjectiveVery pleased or satisfied; delighted.
5.adjectiveDisgruntled, displeased, unsatisfied (This word can be its own antonym. [Is this slang, sarcasm, reverse psychology, etc?])