The place where you put things when your pdl is full. If you don’t have one and too many things get pushed, you forget something. The overflow pdl for a person’s memory might be a memo pad. This usage inspired the following doggerel:
Hey, diddle, diddle The overflow pdl To get a little more stack; If that’s not enough Then you lose it all, And have to pop all the way back. –The Great Quux
The term pdl seems to be primarily an MITism; outside MIT this term is replaced by “overflow stack”.
[oh-ver-flahy] /ˌoʊ vərˈflaɪ/ verb (used with object), overflew, overflown, overflying. 1. to over (a specified area, territory, country, etc.): The plane lost its way and overflew foreign territory. 2. to fly farther than or beyond; overshoot. 3. to fly over or past instead of making a scheduled stop: to overfly Philadelphia because of bad weather. […]
[foh-kuh s] /ˈfoʊ kəs/ noun, plural focuses, foci [foh-sahy, -kahy] /ˈfoʊ saɪ, -kaɪ/ (Show IPA) 1. a central point, as of attraction, attention, or activity: The need to prevent a nuclear war became the focus of all diplomatic efforts. 2. Physics. a point at which rays of light, heat, or other radiation meet after being […]
/ˈəʊvəˌfəʊld/ noun 1. (geology) a fold in which one or both limbs have been inclined more than 90° from their original orientation
/ˌəʊvəˈfɒnd/ adjective (postpositive) foll by of 1. excessively keen (on)