pack a punch

pack a punch

1. To be able to punch powerfully. For such a scrawny kid, George sure can pack a punch—even the older kids are afraid of him!
2. By extension, to have a powerful effect or impact. I don't like spicy food, so I hope this salsa doesn't pack a punch.
See also: pack, punch
Farlex Dictionary of Idioms.

pack a punch

Also, pack a wallop.
1. Be capable of a forceful blow; also, deliver a forceful blow. For example, Knowing Bob could pack a wicked punch, they were careful not to anger him, or She swung her handbag, really packing a wallop. [Colloquial; c. 1920]
2. Have a powerful effect, as in That vodka martini packed a wallop. Thomas Wolfe had this figurative usage in a letter (c. 1938): "I think my play, The House, will pack a punch."
See also: pack, punch
The American Heritage® Dictionary of Idioms by Christine Ammer.

pack a punch

INFORMAL
COMMON If something packs a punch, it has a very powerful effect. He is known for designing clothes that really pack a punch. The advert packs a punch with its straightforward, real, no-tricks approach. Note: People also sometimes say that something packs a wallop. Many years after it was made, this movie still packs a wallop.
See also: pack, punch
Collins COBUILD Idioms Dictionary, 3rd ed.

pack a punch

1 be capable of hitting with skill or force. 2 have a powerful effect.
See also: pack, punch
Farlex Partner Idioms Dictionary

ˌpack a (hard, etc.) ˈpunch

(informal)
1 be able to hit very hard: He’s a boxer who packs a nasty punch!
2 have a powerful effect on somebody: Their latest advertising campaign packs a hard punch. Don’t drink too much of his home-made beer — it packs quite a punch!
See also: pack, punch
Farlex Partner Idioms Dictionary

pack a wallop/punch, to

To exert formidable power. In modern English to wallop means to thrash, and in noun form, a heavy blow, but originally the verb meant to boil with a noisy, bubbling sound, and the noun also was slang for ale. Glyndebourne, site of a summer opera festival in England, perpetuates the last meaning in the name of its restaurant, Nether Wallop (Lower Ale). The verb pack in this expression means “to deliver.” The term dates from the early twentieth century. Eugene O’Neill used it literally in his play The Hairy Ape (1922): “He packa da wallop, I tella you.” Figuratively it appears in such locutions as, “The candidate’s speech really packed a punch.”
See also: pack, wallop
The Dictionary of Clichés by Christine Ammer
See also:
  • pack a wallop/punch, to
  • pack a wallop
  • land a punch
  • Sunday punch
  • punch up
  • take a punch at (someone or something)
  • sucker punch
  • take a poke at
  • take a poke at (someone or something)
  • take a poke at somebody/something