I realize that the following is going to strike an incredibly small percentage of people as in any way humorous (and is going to strike most people as, at best, worthless), but I’m going to post it anyway, in the hopes of humoring those people. My apologies in advance to everyone else.
amphiboly, amphibology.
In rhetoric, a figure of speech signifying ambiguity that arises ‘from uncertain construction of a sentence or clause, of which the individual words are unequivocal’ (OED). For example, the road sign Slow Children, meaning ‘Slow down, Children in the vicinity’, could perversely be taken to refer to the walking pace or the learning speed of children in the vicinity.
The New Fowler’s Modern English Usage, 3rd Edition