The Results:

a) [Scot] a fold in the skin, a wrinkle [ron o.] maxq, Ted, Faldage, Mrs. Rhuby (fwiw)

b) a snap of the fingers [OED2] ASp

c) a small snail found in Central and South America [consuelo] Capfka

d) any of a variety of the iris genus native to New England, featuring showy yellow or purple blossoms [Asp] consuelo

e) [acronym] Low Intensity Remote Photogrammetry [maxq]

f) the hole in a donut [WO’N]

g) a small sucking insect that secreted a sugary cover (or test) over itself for protection [stales] stales

h) dessicated food; just add hot water and eat (from acronym LRRP rations, used in Vietman by soldiers on "Long Range Reconnaisance Patrol") [wofa] Rhuby, Bingley

i) an old Polish unit of measure, equal to 3.68 miles or 5.92 kilometers [Faldage]

j) [n] the noise made by frogs [v] to croak [Bingley]

k) a wind instrument used by the Ancient Greeks [Rhuby] etaoin, juan

l) (from Old English liripen, dross) the waste material that adheres to sandcast moulded metal products, usually removed with a brush before the metal has cooled [Capfka] wofa, musick

m) [slang] a monetary unit only redeemable at a company store [musick]

---

Notes:
1. number a (which fooled a bunch of people but got a pink slip from ASp for being a "proverbial bat selection") was actually a bit of a bumfuzzle, as it is the OED definition of ‘lirk’, a similar four-letter word. it’s a Scottish or N. Brit. dial. term that has been used figuratively in the phrase ‘lirk of the hill’.

1802 SCOTT Minstr. Scott. Bord. (1803) III. 281 The bought i' the lirk o' the hill. a1835 J. M. WILSON Tales of the Borders (1857) I. 207 Till I find her dead body in the lirk of the hill.

2. lirp itself is marked “obs. rare” and has no useful citations other than a couple of glossary glosses

3. wofa’s entry references an actual acronym, LRRP; I suppose it can be pronounced ‘lirp’, but the only hits it gets at OneLook are with the LRRP spelling.

4. As to stales’ protest, I must admit to merely doing a cut & paste where I should have edited the tense. my bad, and you can have your self-inflicted point, stales. :)

say, only 4 footnotes; that’s pretty good for me!