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1.
A bogeyman, or in general, fear and anxiety about the unknown and mortality. From "The World According to Garp".
Jet travel was his undertoad.
by Brillig January 24, 2004

Words related to undertoad

bogeyman douche ew eww ewwy frog nom nom nom om nom nom std toad vagina
 
2.
(noun) A wrinkly toad that lives in disgusting woman's vagina. If a penis penetrates a vagina inhabited by an undertoad, it is at risk of being bitten off, eaten, and/or savagely mauled. Most undertoad have rows of many razor-sharp teeth, the better to ravage upon your male genitalia and/or objects of pleasure.
Broman: ew, ugh, dude, that chick last night had an undertoad. almost got my dick bit off.

Brosephine: i almost got an undertoad once. turns out i was just giving birth to a small baby shark.
by swissykins February 12, 2010