Between “Tom” and “Jack” there is a vast difference. “Jack” is
the sharp, shrewd, active fellow, but Tom the honest dullard.
Counterfeits are “Jack,” but Toms are simply bulky examples of the
ordinary sort, as Tomtoes. No one would think of calling the
thick-headed, ponderous male cat a Jack, nor the pert, dexterous,
thieving daw a “Tom.” The former is instinctively called a Tom-cat,
and the latter a Jack-daw. The subject of “Jack” has been already set
forth. (See Jack. ) Let us now see how Tom is used:
Tom o' Bedlam (q.v.).
A mendicant who levies charity on the plea of insanity. Tom-cat. The male cat.
Tom Drum's entertainment.
A very clumsy sort of horse-play. Tom Farthing. A born
A clumsy, witless fool, fond of stupid practical jokes, but very
different from a “Jack Pudding,” who is a wit and bit of a conjurer.
A lazy, dilatory sluggard. Tom Lony. A simpleton.
A puffing, fuming, stupid creature, no more like a “Jack-a-dandy” than Bill Sikes to Sam Weller.
A mere nincompoop. Tom the Piper's son. A poor stupid thief
who got well basted, and blubbered like a booby. Tom Thumb. A
man cut short or stinted of his fair proportions. (For the Tom Thumb of
nursery delight, see next page.
An occupant who finds it no easy matter to keep his own against
sharper rivals. (See Tom Tidler's Ground.)
A hen-pecked husband.
The brawny, heavy blacksmith, with none of the wit and fun of a
“Jack Tar,” who can tell a yarn to astonish all his native village.
The “Tom Thumb” of birds.
The clumsy, bulky toe, “bulk without spirit vast.” Why the great
toe? “For that being one o' the lowest, basest, poorest of this most
wise rebellion, thou goest foremost.” (Shakespeare: Coriolanus, i. 1.)
A waterman, who bears the same relation to a Jack Tar as a
carthorse to an Arab. (See Tom Tug.) Great Tom of Lincoln. A bell weighing 5 tons 8 cwt.
Mighty Tom of Oxford.
A bell weighing 7 tons 12 cwt. Old Tom. A heavy, strong,
intoxicating sort of gin. Long Tom. A huge water-jug.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894