All Black Ops 3 Zombies GobbleGums, grouped by tier (Classic, Mega, Rare Mega and Ultra-Rare) with their effects. Classic gums come in packs of five; Megas and Black-Market gums are earned with Liquid Divinium.
All 63 Black Ops 3 GobbleGums by tier — Classic (free, packs of 5), Mega, Rare Mega and Ultra-Rare (Black-Market / Liquid Divinium). Filter by tier. Some seasonal/Chronicles gums are grouped as compiled.

Faster ADS walk and raise/lower for 3 rounds.

Respawn with the guns you bled out with.

Longer bleedout time.

Zombies ignore you (2×, 10s each).

Ammo drawn from your stockpile, not the magazine (2:30).

Respawn near the end of the current round.

Melee does 5× damage (2:30).

Teleport to a random location with a concussive blast (2×).

Zero explosive self-damage for 3 rounds.

Faster weapon switch, melee and item use for 3 rounds.

Fire while sprinting for 3 rounds.

Charge your special weapon faster for 10 min.

Better Alternate Ammo Type proc for 1 round.

All zombies chase only you (2×, 10s).

Every 10 points earned becomes 1 reserve ammo (2×, 60s).

Keep perks on revive (3 rounds).

Your next hit ignites nearby zombies (2 hits).

Spawns a Nuke (2×).

Held gun becomes Pack-a-Punched for 60s (2×).

Drops a random power-up (2×).

Drops a Fire Sale (3×).

Drops a Carpenter (3×).

Revive all team-mates with perks.

Melee electrocutes (5×).

Re-spin the Mystery Box (2×).

An extra perk slot when at 4.

Drops Double Points (2×).
12 further Megas incl. Crawl Space, Fatal Contraption, Unbearable, Disorderly Combat, Slaughter Slide, Mind Blown (DLC/Chronicles).

Drops a Max Ammo.

Drops an Insta-Kill (2×).

Drops a Random Perk Bottle.

Your next wall-buy comes Pack-a-Punched.
7 further Rare Megas (DLC/Chronicles).

Freeze all zombies for 20s; shot ones die.

Every perk on the map.

Proximity revive with perks (3 rounds).

All core power-ups at once (2×).
7 further Ultra-Rares (DLC/Chronicles).
4 cosmetic-only DLC classics.