Gurgling sound is a term used to describe a bubbling or burbling sound, usually associated with water. The two crossword solutions for this term are 'SQUELCH' (7 letters) and 'GLUG' (4 letters). SQUELCH is an onomatopoeic word that imitates the sound of liquid being sucked up, while GLUG is an onomatopoeic word that imitates the sound of liquid being poured out. Both words are used to describe the gurgling sound of water.