Effeminate underwear, briefs (usually) with no "Y-fronts", jocks, panties, knickers. Origin of word - Punjabi (India/Pakistan). Popularised in British English by usage in BBC comedy series "Goodness Gracious Me".
The noun "chuddies" is feminine. The masculine of it would be "chuddas".
One of those Def Leppard chapswore Union Jack chuddies.
A door wall is a sliding-glass door or patio door. The term is yet another example of banal Michigan vernacular, where in the residents latch on to company names, trademark names, marketing terms and product names from local companies. The terms become embedded in the local vocabulary and eventually become accepted as actual valid words and phrases. In this case the term comes from Wallside Windows in Taylor, MI (a large window manufacturer), where 'door wall' is their created word for sliding-glass door.
"Bob! John's gonna bring over them doorwalls from Wallsides on Tuesdee afternoon 'round two-thirty. Get 'er done!"