2.
frets: (1) complains; (2) frays; i.e., chafes, with pun on another meaning on the word applying to velvet with the nap awry. gummed: stiffened with gum.
3.
close: concealed.
6.
keep: keep up.
12.
squier: square, foot rule, as in "carpenter's square." Falstaff's point is that he can't walk even an inch farther than four feet without hurting himself.
14.
for: despite.
18.
medicines: love potions.
23.
turn true man: turn honest man; also, turn informer.
37.
colt: trick, cheat.
39.
uncolted: i.e., deprived of your horse.
43-44.
heir-apparent garters: An allusion to the Order of the Garter, in which the Prince, as heir apparent, had been installed as a knight.
44.
peach: inform on you, turn informer.
47.
is so forward: goes so far.
50.
setter: planner of the robbery; i.e., Gadshill.
53.
Case ye: mask yourselves, put on your disguises.
58.
make us all: i.e., make our fortunes.
67.
John of Gaunt: A punning allusion to Hal's thinness.
69.
proof: test.
76.
happy man be his dole: i.e., may each man be fortunate; good luck to you. "Dole" is that which is dealt out by fate or chance.
84.
caterpillars: parasites; those who thrive off the commonwealth.
88.
gorbellied: potbellied.
89.
chuffs: churls, rich but miserly; misers. your store: total wealth; all your possessions.
90.
bacons: swine; i.e., fat men.
91.
grandjurors: i.e., affluent citizens (eligible for jury duty).
93.
true: honest.
95.
argument: topic of conversation.
100.
equity: judgment, discrimination; variously interpreted.
109.
lards of the lean earth: an allusion to the practice on the part of butchers of inserting fat into lean meat (lards = bastes).