jump thrown in at the deep end

Meaning

1. jump / be thrown in at the deep end

   to start or be made to start a new and difficult activity that you are not prepared for

   Junior hospital doctors are thrown in at the deep end in their first jobs.

From the same entry

• go off the deep end
• in deep water
• between the devil and the deep blue sea
• in the shit
• deep down
• go deep
• dig deep
• dig in your pocket , savings
• still waters run deep