Verb. To shower champagne (specifically Bollinger brand) on someone. Chiefly British. Not found in the OED.
"...Bollyspraying Bullingdonians who rule us..." London Rev. Books 6Jan2011
"...but nobody wants a return to the 1980s, when yuppies brayed as the Bolly sprayed" Sunday London Times 3Dec2006
bolly-sprav (participle) "...Bolly-spray (ing) Bullingdonians who rule us..." London Rev. Books 6Jan2011
bolly-sprav (past tense) "...but nobody wants a return to the 1980s, when yuppies brayed as the Bolly-spray (ed)" Sunday London Times 3Dec2006