"Gives someone gate" is an idiomatic expression which means to dismiss or reject someone. The spelling of "gate" in this context is interesting because it is pronounced differently from its usual pronunciation. Instead of the usual "geit" pronunciation, "gate" is pronounced as "gait" to rhyme with "wait". This is due to the influence of certain dialects, which pronounce the word this way. The IPA phonetic transcription for "gives someone gate" is /ˈɡɪvz ˈsʌmwʌn ɡeɪt/.