German composer dismissed flashbacks and had some drinks here (6)
I believe the answer is:
flasks
I'm afraid I can't explain this answer.
Can you help me to learn more?
(Other definitions for flasks that I've seen before include "Bottles with narrow necks" , "Glass containers" , "Containers for liquid, thermos say" , "Narrow-necked bottles, thermos or vacuum" , "Narrow-necked bottles, may be of vacuum type" .)