(military) The ground between trenches where a soldier from either side would be easily targeted.

(idiomatic, slang) Not a big deal, not something to worry about.

(slang) Expressing firm disagreement.

(US, chiefly Southern US) Any biting midge (family Ceratopogonidae), small flies (1–4 mm long); sometimes the species Leptoconops torrens in particular.

(slang) no problem

It does not bother me; I am not concerned. / It was no problem; not at all; you're welcome. / Do not worry, I will do it.

In subjective matters of taste, people have wildly different opinions; disagreements about matters of taste cannot be objectively resolved.

(slang, usually predicative) No doubt.

(idiomatic) (of a statement, especially a threat or admonishment) Bluntly, forthrightly; explicitly, categorically.

Clipping of there's no time like the present.