Top definition
an insufficiently sized shaft (penis). in such a case, the package cannot be properly used in any means to please anybody.

ranging between the disappointing measurements of outie bellybutton, and not-quite-adequate.

individuals with a dyliston may have difficultly in the following areas:
- intercourse.
- arousing a partner.
- self-esteem.
- popularity (acquiring rather unfortunate nicknames).
- getting any.

and of course, any attempt at performing sexually.
1. my boyfriend and i were about to have sex for the first time. he undressed, i laughed and said, "how do you expect to get laid if you have a dyliston?"

2. i heard this girl went to fool around with that guy at the party, but she walked out when she noticed he had a dyliston!
by willan February 10, 2011
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