here goes

Related to here goes: here goes nothing

here goes

A phrase that precedes an action or attempt. This drink looks disgusting, but here goes! "Here goes nothing," he muttered as he began the final exam.
See also: goes, here
Farlex Dictionary of Idioms.

Here (it) goes.

Something is going to start.; I will start now.; I will do it now. I'm ready to start now. Here goes. Okay, it's my turn to kick the ball. Here it goes!
See also: goes, here
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

here goes

1. An expression or exclamation declaring one's resolution to do something, as in This hill is steeper than any I've skied before, but here goes! This usage is sometimes amplified to here goes nothing, meaning one is starting something that one doubts will succeed, as in I've never tried this before, but here goes nothing. [Early 1800s]
2. here one goes again. Someone is repeating the same action or speech, especially an undesirable one. For example, Here he goes again, criticizing all his colleagues, or The power's out-here we go again. [Colloquial; mid-1900s]
See also: goes, here
The American Heritage® Dictionary of Idioms by Christine Ammer.

ˌhere ˈgoes

,

ˌhere we ˈgo

said before you begin to do something dangerous, exciting, difficult, etc: Is everybody ready? OK, here goes. Turn on the electricity and let’s see what happens.
See also: goes, here
Farlex Partner Idioms Dictionary
See also:
  • God willing
  • God willing and the creek don’t rise
  • God willing and the creek don't rise
  • (the good) Lord willing and the creek don't rise
  • creek
  • willing
  • GWATCDR
  • bang goes
  • bang goes (something)!
  • bang goes something