sadist someone who obtains pleasure from inflicting pain or others
sadomasochist someone who enjoys both sadism and masochism
lech,
lecher,
letch,
satyr one of a class of woodland deities; attendant on Bacchus; identified with Roman fauns
Verb
pervert -
change the inherent purpose or function of something; "Don't abuse the system"; "The director of the factory misused the funds intended for the health care of his workers"
expend,
use use up, consume fully; "The legislature expended its time on school questions"
fracture fracture a bone of; "I broke my foot while playing hockey"
take in vain use a name, such as God, without proper respect
pervert -
corrupt morally or by intemperance or sensuality; "debauch the young people with wine and women"; "Socrates was accused of corrupting young men"; "Do school counselors subvert young children?"; "corrupt the morals"
modify,
alter,
change make less severe or harsh or extreme; "please modify this letter to make it more polite"; "he modified his views on same-gender marriage"