Gulp sound effect

The muscle closing and letting go with nothing to lubricate it, so all you hear is the click. This is the take most edits want, because a dry throat is what an audience reads as fear.

One full mouthful going down with a surge behind it. The wetness changes the meaning entirely: this reads as relief or thirst where the dry version reads as dread.

Five swallows stacked back to back with no room between them. Written as a run of separate surges rather than as drinking, which is what stops it arriving as a vague liquid wash.

A sharp intake landing straight into a swallow, the two touching with nothing between them. The pairing is what turns a swallow into a reaction rather than a body noise.

A rubbery slide down a throat ending in a hollow pop, and deliberately nothing like a real one. Comedy needs the exaggeration, since a truthful swallow is too small to read as a joke.

Barely there, with the top taken off it and almost no wetness. Useful when a character is listening rather than reacting and a hard gulp would overplay the moment.