Webster's 1913 Dictionary
YER
YER Yer, prep.
Defn: Ere; before. [Obs. ] Sylvester.
New American Oxford Dictionary
yer
yer |yər jər | ▶possessive determiner nonstandard spelling of your, used in representing dialectal speech: eat yer dinner. ▶contraction you are, used in representing dialectal speech: yer a dang fool. ▶pronoun nonstandard spelling of you, used in representing dialectal speech: well, are yer comin'? ▶adverb nonstandard spelling of here, used in representing dialectal speech: I hate mighty bad to bus ’ up dis yer ax-helve.
Oxford Dictionary
yer
yer |jə | ▶pronoun non-standard spelling of you, used in representing dialectal speech. ▶possessive determiner non-standard spelling of your, used in representing dialectal speech. ▶contraction you are, used in representing dialectal speech.
Sanseido Wisdom Dictionary
yer
yer /jə r /⦅くだけて 非標準 ⦆=you , your (!発音つづり ) .