A fuckbuck is the label off of a bottle of beer, carefully removed as condensation makes the glue between the paper and bottle lose tack/adhesion while consuming the beverage. Once removed, the fuckbuck is then presented to a recipient as a declaration of the desire to have sexual relations.
Jeremy carefully removed the sweaty label from his bottle of Bud, being careful not to tear the edges, and then presented the Fuckbuck to the object of his desire, Linda-Sue, who responded with glee to his advance.
a person of incredibly low self esteem and absolutely no morals who will allow sexual intercourse to be performed upon them for chump change, usually in the washroom at a public park or perhaps in a bar
"melissa is such a fuckbuck, she took it in every orifice at least ten times last night for two dollar fity fi and some chewing gum"