Green’s Dictionary of Slang

beam up v.2

[? ironic use of ‘Jesus wants me for a sunbeam’ from Christian children's hymn ‘I’ll Be a Sunbeam’ ]

(N.Z. prison) to go to church.

[NZ]D. Looser Boobslang [U. Canterbury D.Phil. thesis] 14/2: beam up v. to go to church.