motor bicycle1
/ˈməʊtə ˌbʌɪsɪkl/Now somewhat formal
noun
= motorcycle.
Origin
Late 19th century; earliest use found in The Westminster Gazette. From motor + bicycle.
motor-bicycle2
/ˈməʊtəˌbʌɪsɪkl/nonce-use
verb
[with object] To while (time) away on a motorcycle.
Origin
1960s; earliest use found in John Betjeman (1906–1984), poet, writer, and broadcaster. From motor bicycle.