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).