Afrikaans speaking people in South Africa, like myself, use it as "gesellig". With a softer 's' sound.

Used in the same context and with the same meaning as gezellig.

For example:
"Ons kuier nou lekker gesellig."

Roughly translated:
"We are enjoying each other's company" (and the current mood)

Also linked with a desire not to part, or otherwise interrupt the conversation and atmosphere.

Really effective if used by somebody holding a cup of coffee.