Preheat a grill to medium-high heat.
Coarsely mash the avocados in a medium bowl. Lightly mix in the cilantro, vinegar, jalapeno, lime juice and onion. Season the guacamole liberally with salt.
Grill the hot dogs, turning ever few minutes so they get grill-marked on all sides, until heated through, about 8 minutes.
Remove some of the insides of the hot dog buns and discard. Grill the buns for 2 to 3 minutes until toasted on the inside.
Spread a small amount of the guacamole inside each hot dog bun. Put a hot dog on each bun. Top with more guacamole and crumbled chips.