The slang word tsugi is an onomatopoeic expression, i.e. a word which imitates the sound made by its referent. The referent in this case is tsug! the sound made by a knife being violently embedded in the human body, as depicted in Tagalog-language komiks.
tsugi
dead
verb form: tsinugi
killed
This word can now be found listed in standard Filipino dictionaries that have recently come out, though the given definition is “person, thing, experience or event that is unpleasant.”
tsugi
loser
Non-standard spelling variations: tsuge, tsinuge, chinugi, chinuge
MGA KAHULUGAN SA TAGALOG
tsugi: tao, bagay, karanasan o pangyayari na hindi kanais-nais o hindi pumasa sa pamantayan
Tsugi ang isang bagay, karanasan, lugar, tao, at pagkatao kapag negatibo ang dating nito.