Comedian Bob Marley is a Maine-iac and darn proud of it. Throughout his celebrated standup career, the Bangor-born jokester has mined his Pine Tree State roots for knee-slapping material. Whether touting Tom Brady’s supposed superhuman powers or skewering the northeastern pastime of heading “upta camp,” Marley serves up cheeky wit with a wicked New England twist. His riotous regional observations, doled out with distinctly non-rhotic delivery, fill out more than 20 comedy CDs with titles such as Drop It Haahd! and The Irish Curse. The funnyman slings sizzling zingers this Friday at the Barre Opera House.