А в самом деле, что это такое?

Мне в компьютерном обзоре встретились выражения:
* lay down the smack
* diggity dog
* double stuff (не в сексуальном значении - его я уже поняла после поиска выражения в интернете :lol: )
* back to snuff

Спасибо, если найдете ответ!

Насколько я мог

Насколько я могу судить, diggity dog - слова, взятые из песенки, которую поют на мотив Chabrier's "España Rhapsody" , и которые часто обыгрываются в рекламных слоганах. Текст всей песенки приводится ниже:

Hot Diggity (Dog Ziggity Boom)
Written by - Al Hoffman & Dick Manning
Oh, hot diggity, dog ziggity
Boom what you do to me
It's so new to me
What you do to me
Hot diggity, dog ziggity
Boom what you do to me
When you're holding me tight

Never dreamed anybody could kiss that a way
Bring me bliss that a way, what a kiss that a way
What a wonderful feelin' to feel that a way
Tell me where have you been all my life

Oh, hot diggity, dog ziggity
Boom what you do to me
It's so new to me
What you do to me
Hot diggity, dog ziggity
Boom what you do to me
When you're holding me tight

Never knew that my heart could go "zing" that a way
Ting-a-ling that a way, make me sing that a way
Said goodbye to my troubles, they went that a way
Ever since you came into my life

Oh, hot diggity, dog ziggity
Boom what you do to me
It's so new to me
What you do to me
Hot diggity, dog ziggity
Boom what you do to me
When you're holding me tight

There's a cute little cottage for two that a way
Skies are blue that a way, dreams come true that a way
If you say I can share it with you that a way
I'll be happy the rest of my life

Oh, hot diggity, dog ziggity
Boom what you do to me
It's so new to me
What you do to me
Hot diggity, dog ziggity
Boom what you do to me
When you're holding me tight

Oh, hot diggity, dog ziggity
Boom what you do to me
How my future will shine
Hot diggity, dog ziggity
Boom what you do to me
From the moment you're mine

Hot dog

Какое отношение данная фраза имеет к компьютерному обзору можно скзать при наличии контекста.

up to snuff - Informal: Normal in health
get sb/smth back to snuff - поставить на ноги/поднять на ноги (вылечить)
back to snuff - в норме, в порядке

мороз по коже

мороз по коже