We don't have synonyms for xemself yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are hemself.
(n) :
a male person, previously mentioned, as the object of a verb or preposition, or as an intensifier; improperly as the subject or non-reflexive object of a predicate; mainly in nonstandard dialects
(n) :
a male person, previously mentioned, as the object of a verb or preposition, or as an intensifier; improperly as the subject or non-reflexive object of a predicate; mainly in nonstandard dialects