European nudist drinking gallons -- one to push the boat out?
I believe the answer is:
bargepole
'european nudist drinking' is the definition.
The definition suggests a singular noun which matches the answer.
'gallons one to push the boat out?' is the wordplay.
'gallons' becomes 'pol' (I am not sure about this - if you are sure you should believe this answer much more).
'one to push' becomes 'barge' (I've seen this before).
'the boat' becomes 'e'.
'out?' is an insertion indicator.
'barge'+'e'='bargee'
'pol' going inside 'bargee' is 'BARGEPOLE'.
Can you help me to learn more?
(Other definitions for bargepole that I've seen before include "stick for propelling vessel" , "Propeller" , "Boatman's equipment (not to be used for touching it!)" , "Long stick for fending off obstacles" .)