Exercise on a dual checkout in Colorado, in a C150. Full flap. My recollection is that I was at full power. Said to be usefull for a soft snow landing if there is no choice - no intention of taking off again. I've never had to do it for real
(After doing it gently, on next attempt I was told to go around, after roundout. Lift drag flap only, build speed, climb away. Wheels not to touch runway.)
I mentioned a precautionary landing, (eg to avoid IMC), when a tailstrike will possibly do less damage than hitting ground objects. (eg to avoid IMC)