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1. at
2. to

Used frequently in New Orleans and maybe other places where people either A) have not learned proper use of prepositions or B) are speaking a version of English infused with constructs from other languages
I went by your house yesterday, and you were not there.

Hey, they have a sale on ground meat over by John's Grocery.
by by zingerhoff July 10, 2011
Related Words
BYOB Byron bye byler bye felicia BY THE WAY BYOC BYT bya byrd
pronounced 'by' but people spell it different ways: boi, biy, bi...and so on.
It is a term we cork (ireland) people use when referring to each other. It would be the equivalent of 'homeboy' or 'homie' and so on..!!
1st person: 'Are you coming down to...tonight?'
2nd person: 'Naw by' (no!)

1st person: 'Story by?'
2nd person: 'S'crack?'
By by xxkrissxx September 18, 2007
By means Bye but without the E because some people want to be special
Hguh: By
Kily: Bye bbg
phrase used by Newfoundlanders
used much the same way austrailians use mate
yes by'
go way by'
thats crazy by'
by' by Brad Ktulu June 24, 2005
Teacher: You didn't show your work on the homework
Student: It doesn't say "show your work," so by law I don't have to
By law by malignanttumour May 13, 2019

By all means 

Without fail; certainly. Another way of saying go right ahead.
By all means, go to the store today, see if I care.
By all means by OneBadAsp November 3, 2006