The gue is likely an assortment of various plant oils. It will likely take some heat and PBW to cut along with a touch of elbow grease. If you're faced with this often, a glass carboy or one the newer plastic fermenters repel oils quite nicely.
Primary: Imperial Cascadian Ale, Robust Porter - Secondary: Pale Ale
On Tap: IPA, Pale Ale, Imperial IPA, Oatmeal Stout and Roggenbier