Top definition
1. male genitilia (i.e. a penis)

2. an insult (e.g ..... is a gash plug)

3. the opposite to a cock socket

4. can also be used to describe a dildo/vibrater
'jeff is such a gash plug'

'excuse me, please may i plug your gash?'

by Harriet Evans September 03, 2006
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