There are two kinds of slips: a side slip and a forward slip. Drop one wing and apply opposite rudder to induce a forward slip and lose altitude quickly.
1 The aircraft forces in straight, level, un-accelerated flight.
Understanding the Aerodynamic Forces in Flight (lift, drag)
4.22 - Slipping and skidding
How to Calculate Top Of Descent
The difference between a side slip and a forward slip
i.ytimg.com/vi/XHd4RbgU5gI/mqdefault.jpg
The Difference Between a Forward Slip and a Sideslip - Pilot Institute
Engine-Out to a Field - PilotWorkshops
Flight Maneuver Execution: Forward Slip to Land
Ep. 26: How to Forward Slip an Airplane
No stall, no spin: why angle of attack is essential : Air Facts Journal
The Difference Between a Forward Slip and a Sideslip - Pilot Institute
Slip vs Skid: Which Turn Is More Dangerous [And How to Avoid It]
/images/thumb/e/e0/Land-a-Cessna-17
Sideways - AOPA