From Longman Dictionary of Contemporary Englishbe in with somebodybe in with somebodyinformalFRIENDLY to have a friendly relationship with someone She’s in with the theatrical crowd. You have to be well in with the directors (=be very friendly with them) if you want to get promotion here. → in
Examples from the Corpus
be in with somebody• To be in with a chance of winning simply complete this Eric Clapton song Wonderful ... ...• It seems that even Toulouse-Lautrec thinks he is in with a chance.• Opinion polls, though not very reliable, show that Kostunica is in with a chance.• McHale said McGee was in with a good chance of starting against Halifax because he can play in defence or midfield.• We were in with a medal chance.• Dave Mitchell is running about and is in with a shout.• Standardized fascias and fronts, company colours, house lettering and stylized logos are in with a vengeance.• He started thinking about Careta, who he knew was in with this car-theft ring that operated in the area. 