Pop-uppers are...

[Monterey]

always popping thier lids

[flyfisherman]

Always trying to hook-up.

[AustinBoston]

Sometimes completely dry

[GrizzlyTaco]

gassy at times........

[campingcop]

Avoiding the dark side

[mountainrev]

...happy campers.

(obvious, I know).

[Old Goat]

Are campers who never get to old to popup....I hope......

[ChisholmTrail-er]

...thick-skinned, and just a little tents.

[Brantime]

...on the up and up!

[SpeakEasy]

... running the risk of being overextended.

[mulerider]

Late on a dark night....half a bubble off.

[AustinBoston]

Always going where they are towed...