Clink is the sound these glasses make when they strike.
clink definition by Webster's New World
Origin: Middle English clinken ; from Middle Dutch klinken: origin, originally echoic
- such a sound
Origin: < name of an 18th-c. prison in Southwark (London)Informal a jail; prison
clink definition by American Heritage Dictionary
intr. & tr.v. clinked, clink·ing, clinks
Origin: Middle English clinken, probably from Middle Dutch klinken, of imitative origin.
Origin: After Clink, a district of London famous for its prison.