businessmen 'chumming up to' [=('US') 'buddying up to'] politicians to get their support
a politician who is often seen 'chumming around' [='palling around'] with celebrities
They were 'chumming for' sharks. [=throwing chum into the water to attract sharks]
(..) Today's meeting is step five: Bring a Fish Friend. - Do you all have your friends? - Got mine. - Hey there. - How about you, Chum? Well, l seem to have misplaced my... friend. lt's all right, Chum. l knew this would be difficult. Take one of my friends. (..)2003 Finding Nemo
(..) Okay. That's all that matters. Look. Balloons. lt is a party. Mind your distance, though. Those balloons can be a bit dodgy. You wouldn't want one of them to pop. Anchor! Chum! There you are, Bruce. Finally. - We got company. - lt's about time, mate. We've gone through the snacks and l'm starving. (..)2003 Finding Nemo