Full-bar Edit Meaning

1.

To be incredibly enthusiastic about something, almost to the point of sexual arousal. Used if an aquaintance constantly bleats on about a particular person, place or thing. Normally accompanied by the lifting of the arm gesture whilst slightly bent at the elbow

Golly, Tarquin has an absolute full-bar for playing polo on a Sunday

or

I have a full-bar for a sweet sherry today

See enthusiasm, keen, arousal