Haka Haka no Mi

The Haka Haka no Mi is a Paramecia-type Devil Fruit that turns all the users' bodily fluids into flammable fluids, making the user a Firefighter (消防士 Shōbō-shi?). It was eaten by Weir D. Enjō.

Etymology
Haka(墓) comes from the word Hakka suru(発火する) which means ignite in english.

Strengths
All the users' bodily fluids(Sweat, tears, blood, saliva, mucus etc.) become flammable and the user is able to ignite the fluids conciously.

Weakneses
The user is easily suceptible to sources of ignition.