The smile of someone who has successfully completed a blow job, with or without the semen still present. Alternatively, an insult for someone who performs blow jobs too willingly or, more generally, for a person, typically a man, one dislikes because he is a nuisance, a dork or a jerk: dick, cocksucker, cad, asshole, motherfucker, fag.
She looked up at me with a loving gurglesmirk.
Man, he really bugs me. He's such a gurglesmirk.
The art and science of finding weaknesses in your opponent by slapping an open hand between two parts of the opponent's body. Creativity is encouraged and the only way to success. Victory is determined by whoever surrenders first. For example, slapping between the opponent's legs or between their elbow and ribcage, etc.
Action: Slapping another person between their fetal position torso and tops of thighs; Yelling: GURGLESOCK!!!!
I gurglesocked him so hard he cried and peed himself.