in the swim (of things)informalMODERN knowing about and involved in what is happening in a particular situation 了解并融入某种形势的;不脱离潮流的in the swim (of things)• When I have a shoal of feeding bream in the swim I can not rest easy.• Rolling bream and line bites told me that fish were in the swim.
→ in the swim (of things) at swim2(1)