Originally, an acrostic is a poem, word puzzle, or other composition in which certain letters in each line form a word or words. An acrostic cipher or code is when the first letter (and/or the last) or syllable of every word, line, or paragraph spells out a secret message.

Example:

His eternal love

SNATCHED, SKINNED, SLAUGHTERED
by Cariza Lorenzana

Chased by hyenas in the dark alley
Her face frantic with agony
Resisted every form of abuse
Insisted and pleaded on being freed
Sadly, the evil monsters remained unperturbed
Threatened that she might speak up
Instantly killed and feasted on her
No one was there to rescue despite
Endless screams and heartbreaking sobs

Snatched, skinned, slaughtered
Indeed, a crime that history cannot fathom
Loads of theories about her death blossomed
Angst, disappointment, frustration, sympathy
Were like wounds that cut deep into our soul
All is irreversible, yet the truth will come out soon
No hyena shall escape the day of doom
 

credit to Miss Cariza Lorenzana for letting me use her piece