Boojum

J boojum ?
Attacks	bite 3d10, claw 3d10, claw 3d10, claw teleport

J boojum ?
Attacks	bite 3d10, claw 3d10, claw 3d10, claw teleport
Base level	18
Speed	15
Base AC	0
Base MR	90
Alignment	0 (neutral)
Frequency (by normal means)	0 (Not randomly generated)
Genocidable	No
Weight	400
Nutritional value	200
Size	large
Resistances	fire, shock, disintegration
Resistances conveyed	fire, shock, disintegration
A boojum: can fly. is an animal. can see invisible creatures. is carnivorous. is not a valid polymorphable form. is normally generated hostile. is strong. can be seen through infravision.
Reference	monst.c#line1651

Boojums are SporkHack and EvilHack monsters which are only found when a snark reveals itself to be one. One of its attacks can teleport the player across the map much like a quantum mechanic.