オレラ マサル君に話 通してますよ。it translates as: we've already talked with Masaru-kun.
1 Answer
「(人に)[話]{はなし}を[通]{とお}す」 means "talk to someone and get consent (in advance)" "run it by someone" (事前に話して了承を得る).
オレラ マサル君に話 通してますよ。
Here a few particles are omitted. してます is a contraction of しています.
オレラは、マサル君に話を通していますよ。
means "We have already talked to Masaru-kun and got his consent."
~ています here means "have already done" (not the present progressive "are doing ... now".) For more on this ~ている: