A crumb of coochie is when you do not have full sexual intercourse with a girl. But you get kissing, making out, grinding, fingering, etc. but no penetration and ejaculation
Thus only a crumb of coochie
Dude 1: We didn’t have full sex last night sadly.
Dude 2: So you only got a crumb of coochie?
Dude 1: Yeah I guess so.
When you have a semi-sexual encounter that involves kissing, grinding, fingering, touching over clothes but not actual insertion or ejaculation.
This a crumb of coochie
Dude 1: Hey bro so last night me and here did a lot but didn’t have actual sex.
Dude 2: so you got a crumb of coochie then?
Dude 1: Yeah I guess so
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!"