We don't have synonyms for shirt tails yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are shirt tail, shirttails and shirttail.
(N) :
a mid-19th-century street gang based in the Five Points slum in Manhattan, New York, United States, who wore their shirts on the outside of their pants as 19th-century Chinese laborers would dress as a form of insignia and as a sign of gang group affiliation.
(N) :
a mid-19th-century street gang based in the Five Points slum in Manhattan, New York, United States, who wore their shirts on the outside of their pants as 19th-century Chinese laborers would dress as a form of insignia and as a sign of gang group affiliation.